https://www.aglresearch.com/research-publications daily 1.0 2026-01-05 https://www.aglresearch.com/research-publications/evolution-of-gem-testing-labs-8z7z3 monthly 0.5 2024-11-15 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/f23f763d-fe04-47d7-93c5-3b9b9b21ee2f/Arzakite+in+Burma+Ruby-AGL-LOGO.jpg Research & Publications - Arzakite inclusion in Ruby from Mogok Arzakite Inclusion in Ruby from Mogok. Photo by Bilal Mahmood https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/6b402077-de5b-406d-995a-ff7b4a8383d8/Fall24-gem-news-international_Arzakite_2.jpg Research & Publications - Arzakite inclusion in Ruby from Mogok - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/e08afde7-08d6-4967-a40b-1eb94d2a9b42/Fall24-gem-news-international_Arzakite_1.jpg Research & Publications - Arzakite inclusion in Ruby from Mogok https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/fe4653bb-aa7e-46ff-baec-d312378a9487/Fall24-gem-news-international_Arzakite_3.jpg Research & Publications - Arzakite inclusion in Ruby from Mogok - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/070aeae3-b23d-4699-8a46-69a061a73032/Fall24-gem-news-international_Arzakite_4.jpg Research & Publications - Arzakite inclusion in Ruby from Mogok - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://www.aglresearch.com/research-publications/evolution-of-gem-testing-labs monthly 0.5 2024-11-15 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1612366722172-CEJ1A3EHP8O5FRPSFOOP/InC_FallWinter+2020_EvolutionGemTestingLabs_CPS-6.jpg Research & Publications - Evolution of Gem-Testing Labs https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1612366776281-DP2IRDV9GPMKFH9ABIS2/InC_FallWinter+2020_EvolutionGemTestingLabs_CPS-8.jpg Research & Publications - Evolution of Gem-Testing Labs https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1612366655630-8EOL0HQ4HIBH25VT51AD/InC_FallWinter+2020_EvolutionGemTestingLabs_CPS-3.jpg Research & Publications - Evolution of Gem-Testing Labs https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1612366705929-FTZ1AI5RBUBZTCQB6ZIV/InC_FallWinter+2020_EvolutionGemTestingLabs_CPS-5.jpg Research & Publications - Evolution of Gem-Testing Labs https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1612366622698-72GES5X2ERDLHXNJW35O/InC_FallWinter+2020_EvolutionGemTestingLabs_CPS-1.jpg Research & Publications - Evolution of Gem-Testing Labs https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1612366794325-B8IQI495CBZ31KX0D2FP/InC_FallWinter+2020_EvolutionGemTestingLabs_CPS-9.jpg Research & Publications - Evolution of Gem-Testing Labs https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1612366686191-POMUMIBLQ5JXITYB15VG/InC_FallWinter+2020_EvolutionGemTestingLabs_CPS-4.jpg Research & Publications - Evolution of Gem-Testing Labs https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1612366103749-85FH6VICNPUBPGGQCHVS/InC_FallWinter+2020_EvolutionGemTestingLabs_CPS-3.jpg Research & Publications - Evolution of Gem-Testing Labs Christopher Smith during a trip to Myanmar. https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1612366640546-H096PGXXE3JV2UX3DSFS/InC_FallWinter+2020_EvolutionGemTestingLabs_CPS-2.jpg Research & Publications - Evolution of Gem-Testing Labs https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1612366747902-CM9P4ALOEW0SL4NOZ6V2/InC_FallWinter+2020_EvolutionGemTestingLabs_CPS-7.jpg Research & Publications - Evolution of Gem-Testing Labs https://www.aglresearch.com/research-publications/vesuvianite-apatite-ruby monthly 0.5 2021-02-03 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1611755530364-AZ0CVPAGJL4YUJFZCWTQ/JoG_V37_No4_+Vesuvianite+and+apatite+inclusions+in+ruby+ID+by+FTIR-3.jpg Research & Publications - Vesuvianite (Idocrase) and Apatite Inclusions in Ruby Identifiable by Infrared Spectroscopy https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1611755493331-0X8ZRJCFQIQOMWM65IN1/JoG_V37_No4_+Vesuvianite+and+apatite+inclusions+in+ruby+ID+by+FTIR-1.jpg Research & Publications - Vesuvianite (Idocrase) and Apatite Inclusions in Ruby Identifiable by Infrared Spectroscopy https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1611771646438-YGPXE9I27WPZ6USVAG7H/JoG_V37_No4_+Vesuvianite+and+apatite+inclusions+in+ruby+ID+by+FTIR.jpg Research & Publications - Vesuvianite (Idocrase) and Apatite Inclusions in Ruby Identifiable by Infrared Spectroscopy Shown here is a particularly large near-colorless apatite crystal located just under the table facet of the 1.39 ct Burmese Ruby. Photomicrograph by C.P. Smith; magnified 28x. https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1611770705124-XE09WF7KPRWQ8YRBF60H/JoG_V37_No4_+Vesuvianite+and+apatite+inclusions+in+ruby+ID+by+FTIR-cover.jpg Research & Publications - Vesuvianite (Idocrase) and Apatite Inclusions in Ruby Identifiable by Infrared Spectroscopy https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1611755509948-J3UGVUNXG7C6TB3HFEQZ/JoG_V37_No4_+Vesuvianite+and+apatite+inclusions+in+ruby+ID+by+FTIR-2.jpg Research & Publications - Vesuvianite (Idocrase) and Apatite Inclusions in Ruby Identifiable by Infrared Spectroscopy https://www.aglresearch.com/research-publications/synthetic-sapphire monthly 0.5 2021-01-27 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1606157845955-EKOWBOYDWD5T58JL47Q6/1107819a-Red+wispy+incls-38x-cps-Flat.jpg Research & Publications - An Unusual Synthetic Fancy Sapphire Colored by Co2+ and Co3+ With fibre-optic lighting, faint wisp-like patterning of minute particles casts a reddish appearance in the synthetic sapphire. Photomicrograph by C.P. Smith, magnified 38x. https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1606157773903-W0MZLSTR1E2MKIYS5AER/JoG_V37_No3_SynthFancySapphire3.jpg Research & Publications - An Unusual Synthetic Fancy Sapphire Colored by Co2+ and Co3+ https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1606157545518-5QU3V2R9Z7R3DS6MQ6TQ/JoG_V37_No3_SynthFancySapphire1.jpg Research & Publications - An Unusual Synthetic Fancy Sapphire Colored by Co2+ and Co3+ https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1606157564229-95RD3O3YJWRS3P6Y7QM7/JoG_V37_No3_SynthFancySapphire2.jpg Research & Publications - An Unusual Synthetic Fancy Sapphire Colored by Co2+ and Co3+ https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1606157795873-W8CFGQFGQLY9TDR1G8WX/JoG_V37_No3_SynthFancySapphire4.jpg Research & Publications - An Unusual Synthetic Fancy Sapphire Colored by Co2+ and Co3+ https://www.aglresearch.com/research-publications/incolor-codex monthly 0.5 2021-01-27 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1611770117506-IWTXUMPHBG7P1X3VJV0G/InColor_Winter2020_ColorCodex-4.jpg Research & Publications - ColorCodex™ - A New Tool for the Gemstone and Jewelry Industry https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599833810803-UP2WQUM5LO3YGJVO9XXU/Logo_Invoice.jpg Research & Publications - ColorCodex™ - A New Tool for the Gemstone and Jewelry Industry https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1611770017951-B7D1XFXUGR56YVK1S2P6/InColor_Winter2020_ColorCodex-1.jpg Research & Publications - ColorCodex™ - A New Tool for the Gemstone and Jewelry Industry https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1611770040494-J0SPVMRTASOZ32PTPHJ0/InColor_Winter2020_ColorCodex-2.jpg Research & Publications - ColorCodex™ - A New Tool for the Gemstone and Jewelry Industry https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1611770089277-EPNE1UWT83CREHQVQF3L/InColor_Winter2020_ColorCodex-3.jpg Research & Publications - ColorCodex™ - A New Tool for the Gemstone and Jewelry Industry https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1611770391015-651URKAHY5FPNT7ODDVY/InColor_Winter2020_ColorCodex-7.jpg Research & Publications - ColorCodex™ - A New Tool for the Gemstone and Jewelry Industry https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1611770140427-D8IZV43L6BAMJ08RWIYN/InColor_Winter2020_ColorCodex-5.jpg Research & Publications - ColorCodex™ - A New Tool for the Gemstone and Jewelry Industry https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1611770372287-OWS9RGBL323YCRHE6WWF/InColor_Winter2020_ColorCodex-6.jpg Research & Publications - ColorCodex™ - A New Tool for the Gemstone and Jewelry Industry https://www.aglresearch.com/research-publications/sphene-in-ruby monthly 0.5 2020-11-23 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599744028001-ZREERDLFGT7Y4QQNAH8E/JoG_V37_No+1_Titanite+%28Sphene%29+inclusions+in+Ruby_CPS-2.jpg Research & Publications - Titanite (Sphene) Inclusions in Ruby Identified by Infrared Spectroscopy https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599752759391-7T08AVWNDA7K65UVC0NC/Figure_2_Sphene_Inclusions_In_Rubies_flat.jpg Research & Publications - Titanite (Sphene) Inclusions in Ruby Identified by Infrared Spectroscopy This ruby contains an unusually high concentration of titanite (sphene) inclusions. Photomicrograph by C.P. Smith, magnified 42x. https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1589138923529-PI46BOU8VM1FB5PUTXC0/JoG_V36_No%2B7_Heated%2BSapphire%2Bwith%2BUnstable%2BColour%2BCentres_KR3.jpg Research & Publications - Titanite (Sphene) Inclusions in Ruby Identified by Infrared Spectroscopy https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599744011615-48HXDVRXGMYVXGSQBLAO/JoG_V37_No+1_Titanite+%28Sphene%29+inclusions+in+Ruby_CPS-1.jpg Research & Publications - Titanite (Sphene) Inclusions in Ruby Identified by Infrared Spectroscopy https://www.aglresearch.com/research-publications/sapphires-unstable-color monthly 0.5 2020-09-11 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1589138923529-PI46BOU8VM1FB5PUTXC0/JoG_V36_No%2B7_Heated%2BSapphire%2Bwith%2BUnstable%2BColour%2BCentres_KR3.jpg Research & Publications - Heated Sapphires With Unstable Color Centers https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590004605541-7ZVRGK2E249DVT315KW8/4%2C19ct+b1-TE+altered+xtl-52x-cps_web.jpg Research & Publications - Heated Sapphires With Unstable Color Centers Evidence of high temperature heat treatment. Photomicrograph taken by Christopher P. Smith; magnified 48x. https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1589138906780-5DU5SWZWL69TNWLX0CGS/JoG_V36_No%2B7_Heated%2BSapphire%2Bwith%2BUnstable%2BColour%2BCentres_CPS-2.jpg Research & Publications - Heated Sapphires With Unstable Color Centers https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1589138881855-SBJFMORLRBKAGWYO9KXC/JoG_V36_No%2B7_Heated%2BSapphire%2Bwith%2BUnstable%2BColour%2BCentres_KR1.jpg Research & Publications - Heated Sapphires With Unstable Color Centers https://www.aglresearch.com/research-publications/emeralds-glass monthly 0.5 2020-09-11 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599251687631-6GEPRO9I8ZWFOBXZ6GU6/JoG_V36_No+8_Pyrite+and+Chromite+assemblage+in+Emerald_LWI-2.jpg Research & Publications - Pyrite and Chromite Inclusion Assemblage in Emerald https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599753353379-21KXENLWJ3NKLYAFUTWP/JoG_V36_No+8_Pyrite+and+Chromite+assemblage+in+Emerald_LWI-1.jpg Research & Publications - Pyrite and Chromite Inclusion Assemblage in Emerald Pyrite crystals and abundant chromite grains are prominent in this emerald, consistent with those from Santa Terezhinha de Goias in Brazil. Photomicrographs by R. Zellagui in darkfield illumination; magnified 9x. https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599251442530-96Z4FT0NENU5F8NKRUH4/JoG_V36_No+8_Pyrite+and+Chromite+assemblage+in+Emerald_LWI-1.jpg Research & Publications - Pyrite and Chromite Inclusion Assemblage in Emerald https://www.aglresearch.com/research-publications/eulytine-inclusions-glass monthly 0.5 2020-09-11 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599250057694-VDXXK9F31IEWQE8BJ8AT/JoG_V36_No+7_Eulytine+Inclusions+on+a+manufactured+Glass_RZ-2.jpg Research & Publications - Eulytine Inclusions in a Manufactured Glass: A Rare Encounter (a) These brownish orange round (1.38 ct) and pear-shaped (1.76 ct) samples were submitted to AGL for analysis. They proved to consist of manufactured glass and (b) contained abundant inclusions that were identified as eulytine. Photos by Alex Mercado. https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599250654950-TIYXJ1H9RTXWPWJNU1DF/JoG_V36_No+7_Eulytine+Inclusions+on+a+manufactured+Glass_RZ-3.jpg Research & Publications - Eulytine Inclusions in a Manufactured Glass: A Rare Encounter https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599250636932-ISW02Y1YIA1SMWFRVXOG/JoG_V36_No+7_Eulytine+Inclusions+on+a+manufactured+Glass_RZ-2.jpg Research & Publications - Eulytine Inclusions in a Manufactured Glass: A Rare Encounter https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599250616783-AP2BLI7NJD9K3HGHOR22/JoG_V36_No+7_Eulytine+Inclusions+on+a+manufactured+Glass_RZ-1.jpg Research & Publications - Eulytine Inclusions in a Manufactured Glass: A Rare Encounter https://www.aglresearch.com/research-publications/identifying-synthetic-periclase monthly 0.5 2020-09-11 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599248281061-Z7KYASGS8PYPWR6YP5Y9/JoG_V36_No+5_Synthetics+and+Simulants_RZ-2.jpg Research & Publications - Identifying Synthetic Periclase https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599753079589-E1HCA0MBHOF0AJN8G512/SyntheticPericlase.jpg Research & Publications - Identifying Synthetic Periclase Photo by Alex Mercado https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599248263281-IM8X8XDPH1SUKNE3C1NB/JoG_V36_No+5_Synthetics+and+Simulants_RZ-1.jpg Research & Publications - Identifying Synthetic Periclase https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599248298181-FB01Y7N4C3LFBN0DX66H/JoG_V36_No+5_Synthetics+and+Simulants_RZ-3.jpg Research & Publications - Identifying Synthetic Periclase https://www.aglresearch.com/research-publications/colorcodex-update monthly 0.5 2020-09-11 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599247311028-9KRVXR3N7JK70PBVVBUV/GraphicArrangement_2000x700px_72dpi.jpg Research & Publications - ColorCodex™ Update https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599247350200-H291OKK5PHZ9S8H7VK9M/JoG_V36_No+5_ColorCodex_CL.jpg Research & Publications - ColorCodex™ Update https://www.aglresearch.com/research-publications/tajik-rubies monthly 0.5 2020-09-11 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590016162238-1DNLP354NY2T4Q6TMM53/JoG_2018_Vol36_No4_Large_Tajik_Rubies-2.jpg Research & Publications - Two Large Rubies from the Pamir Mountains, Tajikistan https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590016510807-GUF10K652SQ1FRS08M05/Figure+3+alternative-Tajik+Ruby-neg+xtls+thin+films-46x-Chris+Smith+AGL_flat.jpg Research & Publications - Two Large Rubies from the Pamir Mountains, Tajikistan Photomicrograph by Christopher .P. Smith; magnified 38x. https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590016140766-LX8CTZ0OWSV1ZM4YG7J2/JoG_2018_Vol36_No4_Large_Tajik_Rubies-1.jpg Research & Publications - Two Large Rubies from the Pamir Mountains, Tajikistan https://www.aglresearch.com/research-publications/sapphires-unstable-color-x8csy monthly 0.5 2020-09-11 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590004281165-MQCX6OG2KLAO7D1C2268/1093668b1-Copper+relics-58x-LowRes.jpg Research & Publications - Native Copper Inclusions in a Cu-bearing Tourmaline Dendritic platelets of native copper are oriented primarily along the c-axis of this Cu-bearing tourmaline. Photomicrograph taken by Christopher P. Smith; magnified 58x. https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590004308586-XZ9FEQAIPNQOUISUNJGE/JoG_2018_Vol36_No3_Copper_Inclusion_Tourmaline.jpg Research & Publications - Native Copper Inclusions in a Cu-bearing Tourmaline https://www.aglresearch.com/research-publications/spinel-in-sapphire monthly 0.5 2020-09-11 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599753616212-PJIIHM438FKBRNQ5PMSK/JoG_V36_No+4_Sri+Lankan+Sapphire+with+Spinel+Inclusion_CPS.jpg Research & Publications - Sri Lankan Sapphire with Spinel Inclusions Photomicrograph by C.P. Smith; magnified 32x. https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599246686032-O9TN0X1BLNJD7JSR1Y54/JoG_V36_No+4_Sri+Lankan+Sapphire+with+Spinel+Inclusion_CPS.jpg Research & Publications - Sri Lankan Sapphire with Spinel Inclusions https://www.aglresearch.com/research-publications/danburite-properties-composition monthly 0.5 2020-09-11 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599245789409-ODXVUTJYGC7XWRZ43WHH/JoG_V35_No5_Yellow+Danburite+From+Namalulu%2C+Tanzanite_+Gemmo+Prop+and+Chemi+Com_CSP-3.jpg Research & Publications - Yellow Danburite from Namalulu, Tanzania: Gemmological Properties and Chemical Composition https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599245769516-PJJF1OVASO8WVSMOMO4S/JoG_V35_No5_Yellow+Danburite+From+Namalulu%2C+Tanzanite_+Gemmo+Prop+and+Chemi+Com_CSP-2.jpg Research & Publications - Yellow Danburite from Namalulu, Tanzania: Gemmological Properties and Chemical Composition https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599753815223-M5R9BRRGY91DVZW27WUF/JoG_V35_No5_Yellow+Danburite+From+Namalulu%2C+Tanzanite_+Gemmo+Prop+and+Chemi+Com_CSP-2.jpg Research & Publications - Yellow Danburite from Namalulu, Tanzania: Gemmological Properties and Chemical Composition Photo by Bilal Mahmood. https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599245756635-I704U75GIV22JVF70RC5/JoG_V35_No5_Yellow+Danburite+From+Namalulu%2C+Tanzanite_+Gemmo+Prop+and+Chemi+Com_CSP-1.jpg Research & Publications - Yellow Danburite from Namalulu, Tanzania: Gemmological Properties and Chemical Composition https://www.aglresearch.com/research-publications/yellow-danburite monthly 0.5 2020-09-11 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599237858868-8FAPSG9REA60N9OOLQXN/JoG_V35_No5_Yellow+Danburite+From+Namalulu%2C+Tanzanite+and+Myanmar+Origin+of+colors+and+its+Stabilitty_CSP-2.jpg Research & Publications - Yellow Danburite from Namalulu, Tanzania, and Myanmar: Origin of Colour and Its Stability https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599237841666-7XWROW3SJT1EBGV25VSJ/JoG_V35_No5_Yellow+Danburite+From+Namalulu%2C+Tanzanite+and+Myanmar+Origin+of+colors+and+its+Stabilitty_CSP-1.jpg Research & Publications - Yellow Danburite from Namalulu, Tanzania, and Myanmar: Origin of Colour and Its Stability https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599237931401-IBS7PSSHSOVYP3P6PTQP/JoG_V35_No5_Yellow+Danburite+From+Namalulu%2C+Tanzanite+and+Myanmar+Origin+of+colors+and+its+Stabilitty_CSP-2.jpg Research & Publications - Yellow Danburite from Namalulu, Tanzania, and Myanmar: Origin of Colour and Its Stability Photos by Bilal Mahmood (a, b) and C. P. Smith (c). https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599237878361-YXPXSKMG86O93BJFAS43/JoG_V35_No5_Yellow+Danburite+From+Namalulu%2C+Tanzanite+and+Myanmar+Origin+of+colors+and+its+Stabilitty_CSP-3.jpg Research & Publications - Yellow Danburite from Namalulu, Tanzania, and Myanmar: Origin of Colour and Its Stability https://www.aglresearch.com/research-publications/color-codex-rapaport monthly 0.5 2020-05-29 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590771102804-ZV54LJ9YJQSFDHII5CC5/RP_2017_ColorCodex-2.jpg Research & Publications - The ColorCodex™ - An innovative approach for establishing the color of gemstones https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590771134143-O2F0SRT0TZ40U2IDNBMP/RP_2017_ColorCodex-3.jpg Research & Publications - The ColorCodex™ - An innovative approach for establishing the color of gemstones https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590771043782-6LI7ZB7QN520KTFL4Y3D/RP_2017_ColorCodex-1.jpg Research & Publications - The ColorCodex™ - An innovative approach for establishing the color of gemstones https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590771162730-VYBPWET8U2Q9N0BF5V8U/RP_2017_ColorCodex-4.jpg Research & Publications - The ColorCodex™ - An innovative approach for establishing the color of gemstones https://www.aglresearch.com/research-publications/anatase monthly 0.5 2020-09-11 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599755366588-0804E7P2ICADD8T0H263/JoG_V35_No3_Facet+Anatase+from+Pakistan_BC.jpg Research & Publications - Faceted Anatase from Pakistan https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599755453818-KY1RLO1F7PS01CY024NX/JoG_V35_No3_Facet+Anatase+from+Pakistan_BC.jpg Research & Publications - Faceted Anatase from Pakistan Iridescent thin films are seen along cleavage planes in this 0.16 ct anatase. Photomicrograph by B. Clark. https://www.aglresearch.com/research-publications/sapphires-from-kina-kenya-5ze6l monthly 0.5 2020-09-11 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1589759260526-RYA9ILT3EDCP5AP7R00L/Figure+2a+-+Scapolite_Final+-+Magnetite+platelets-32x-cps_web.jpg Research & Publications - Scapolite From Tanzania with Magnetite Inclusions The inclusions in the scapolite consist of discoid and irregular-shaped black platelets that were identified as magnetite. Photomicrograph taken by Christopher P. Smith; magnified 32x. https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1589138113167-68XGS06SAFUB1OWHBNC5/JoG_2016_Vol35_No3_Scapolite.jpg Research & Publications - Scapolite From Tanzania with Magnetite Inclusions https://www.aglresearch.com/research-publications/diaspore-turkey monthly 0.5 2020-09-11 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590507279915-BSHOVLKRPFTEDHZPC0L7/Diaspore-CatsEye-BM.jpg Research & Publications - Cat's-eye Diaspore from Turkey This chatoyant 4.60 ct diaspore from Turkey displays a sharp ‘eye’. Photo by Bilal Mahmood. https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590507142311-55CECAO82VR1XILC6R5B/JoG_2016_Vol35_No2_CatsEye_Diaspore_Turkey-2.jpg Research & Publications - Cat's-eye Diaspore from Turkey https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590507109097-CKBC8XVQUP2FM0Y1LN0I/JoG_2016_Vol35_No2_CatsEye_Diaspore_Turkey-1.jpg Research & Publications - Cat's-eye Diaspore from Turkey https://www.aglresearch.com/research-publications/axinite-pakistan monthly 0.5 2020-09-11 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590513086598-MCWG3XE2GN9U0T3LAPFI/JoG_2016_Vol35_No2_Axinite_Pakistan-1_PLACEHOLDER.jpg Research & Publications - Axinite from Shigar Fort, Northern Pakistan Course irregular tubules form abundant inclusions in the Pakistan axinite. Photomicrograph by B. Clark, magnified 40x. https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590514466982-ZGN68U52T873O4FFN0MA/JoG_2018_Vol36_No4_Large_Tajik_Rubies-1.jpg Research & Publications - Axinite from Shigar Fort, Northern Pakistan https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590514481420-LLS90BL8S74MQNCEBTIF/JoG_2016_Vol35_No2_Axinite_Pakistan-2.jpg Research & Publications - Axinite from Shigar Fort, Northern Pakistan https://www.aglresearch.com/research-publications/petroleum-spinel monthly 0.5 2020-09-11 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1589146121039-PINPWXOVFL21KBCCL7NR/petroleum+in+spinel003-2.jpg Research & Publications - Petroleum Inclusion in Pink Spinel https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1589146100073-FYBC8GJBQXUZU0Z3THYA/petroleum+in+spinel003-1.jpg Research & Publications - Petroleum Inclusion in Pink Spinel https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1589759165295-4RCZNBBQDVJQXPWRPJNJ/Figure+27+-+Monruedee+Chaipaksa_web.jpg Research & Publications - Petroleum Inclusion in Pink Spinel Photomicrograph by Christopher P. Smith; magnified 24x https://www.aglresearch.com/research-publications/kyanite-pakistan monthly 0.5 2020-09-11 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590503227551-R4Q5FZU2QOZVHKQK9JLK/JoG_2016_Vol35_No2_Kyanite_from_Pakistan-2.jpg Research & Publications - Kyanite from Pakistan https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590504224720-9SPDGR24QB8G5FZ4T2LC/Kyanite-Pakistan-BM.jpg Research & Publications - Kyanite from Pakistan Photo by Bilal Mahmood. https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590503165735-W20WCVXA91TWN0ORGUOQ/JoG_2016_Vol35_No2_Kyanite_from_Pakistan-1.jpg Research & Publications - Kyanite from Pakistan https://www.aglresearch.com/research-publications/unusual-aquamarine-from-pakistan monthly 0.5 2020-09-11 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599755994234-7XHCOSCB5T5XVLPARIND/JoG_V35_No3_Unusual+Aquamarine+from+Pakistan_BC-2.jpg Research & Publications - Unusual Aquamarine from Pakistan An ocean-like scene of monazite-Ce inclusions is present within the aquamarine cabochon. Photomicrograph by Christopher P. Smith; magnified 30x. https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599756060365-WU7TO0CXZ47XX4YPC2NE/JoG_V35_No3_Unusual+Aquamarine+from+Pakistan_BC-2.jpg Research & Publications - Unusual Aquamarine from Pakistan https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599756046755-F7CZWFKIRUR24R01RNSJ/JoG_V35_No3_Unusual+Aquamarine+from+Pakistan_BC-1.jpg Research & Publications - Unusual Aquamarine from Pakistan https://www.aglresearch.com/research-publications/ruby-pink-sapphire-greenland monthly 0.5 2020-09-11 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599236563464-3PLNQWVVRBEME0W04Q0K/JoG_V35_No4_Ruby+and+Pk+Sapphire+from+Aappaluttoq+Greenland_CPS+BC-4.jpg Research & Publications - Ruby and Pink Sapphire from Aappaluttoq, Greenland https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599236820273-SZK7RMCUAD4DRMEW778P/JoG_V35_No4_Ruby+and+Pk+Sapphire+from+Aappaluttoq+Greenland_CPS+BC-12.jpg Research & Publications - Ruby and Pink Sapphire from Aappaluttoq, Greenland https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599236507581-PZJ0E59JNPWLNQ8BMIFI/JoG_V35_No4_Ruby+and+Pk+Sapphire+from+Aappaluttoq+Greenland_CPS+BC-1.jpg Research & Publications - Ruby and Pink Sapphire from Aappaluttoq, Greenland https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599236528056-6VMB4UBE7RYLBEVXURBE/JoG_V35_No4_Ruby+and+Pk+Sapphire+from+Aappaluttoq+Greenland_CPS+BC-2.jpg Research & Publications - Ruby and Pink Sapphire from Aappaluttoq, Greenland https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599236601231-0CN4OCCB5PWKJINGWLNG/JoG_V35_No4_Ruby+and+Pk+Sapphire+from+Aappaluttoq+Greenland_CPS+BC-6.jpg Research & Publications - Ruby and Pink Sapphire from Aappaluttoq, Greenland https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599236781346-EM7ALULGAU68ZTD1B44M/JoG_V35_No4_Ruby+and+Pk+Sapphire+from+Aappaluttoq+Greenland_CPS+BC-10.jpg Research & Publications - Ruby and Pink Sapphire from Aappaluttoq, Greenland https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599236620074-CN8Q76O56D8W3ISJN7K0/JoG_V35_No4_Ruby+and+Pk+Sapphire+from+Aappaluttoq+Greenland_CPS+BC-7.jpg Research & Publications - Ruby and Pink Sapphire from Aappaluttoq, Greenland https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599236245811-PZ103P1JOPWHXOXL80YJ/JoG_V35_No4_Ruby+and+Pk+Sapphire+from+Aappaluttoq+Greenland_CPS+BC-7.jpg Research & Publications - Ruby and Pink Sapphire from Aappaluttoq, Greenland Fine exsolutions of rutile needles and platelets (sometimes arrowhead shaped) also are commonly encountered in Greenland gem corundum. Photomicrograph by Christopher P. Smith; magnified 58x https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599236762411-DJU0ATOK2GDG1D2NRQWK/JoG_V35_No4_Ruby+and+Pk+Sapphire+from+Aappaluttoq+Greenland_CPS+BC-9.jpg Research & Publications - Ruby and Pink Sapphire from Aappaluttoq, Greenland https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599236546765-7X8BJ9WJKPJE9BWN22YX/JoG_V35_No4_Ruby+and+Pk+Sapphire+from+Aappaluttoq+Greenland_CPS+BC-3.jpg Research & Publications - Ruby and Pink Sapphire from Aappaluttoq, Greenland https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599236840633-H6FLOEECSQ6HMWXK43AF/JoG_V35_No4_Ruby+and+Pk+Sapphire+from+Aappaluttoq+Greenland_CPS+BC-13.jpg Research & Publications - Ruby and Pink Sapphire from Aappaluttoq, Greenland https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599236582594-C0RGNFSZUOFWPOYCBOZL/JoG_V35_No4_Ruby+and+Pk+Sapphire+from+Aappaluttoq+Greenland_CPS+BC-5.jpg Research & Publications - Ruby and Pink Sapphire from Aappaluttoq, Greenland https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599236799083-A0EDGGB70OQ1YTZONBLS/JoG_V35_No4_Ruby+and+Pk+Sapphire+from+Aappaluttoq+Greenland_CPS+BC-11.jpg Research & Publications - Ruby and Pink Sapphire from Aappaluttoq, Greenland https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599236640941-6Y4GQSEI8SVAJFOX717L/JoG_V35_No4_Ruby+and+Pk+Sapphire+from+Aappaluttoq+Greenland_CPS+BC-8.jpg Research & Publications - Ruby and Pink Sapphire from Aappaluttoq, Greenland https://www.aglresearch.com/research-publications/diffused-pink-star monthly 0.5 2020-09-11 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599234896088-59RHIEKOV2K9WK2DTOYT/JoG_V35_No4_Large+Pink+Spphire+wit+Diffusion+induced+star_WMM-1.jpg Research & Publications - Large Pink Sapphire with Diffusion-Induced Star https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599234910649-XLHLAZBO96VR6LLGEAJU/JoG_V35_No4_Large+Pink+Spphire+wit+Diffusion+induced+star_WMM-2.jpg Research & Publications - Large Pink Sapphire with Diffusion-Induced Star https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599249249902-2M17WTDM3EY2FX82QTN6/Diffused+Star+Pink+Sapphire_inclusion.jpg Research & Publications - Large Pink Sapphire with Diffusion-Induced Star Photomicrograph by Christopher P. Smith https://www.aglresearch.com/research-publications/mozambique-apatite monthly 0.5 2020-09-11 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590001165817-H3MBCN67PNPUP5BRR8B2/Apatite_placeholder.jpg Research & Publications - Apatite from Mozambique Photo by AGL https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599754001911-Y0T7ARNZHA7KSFTKODER/JoG_V34_No8_+Apatite+from+Mozambique_MoC.jpg Research & Publications - Apatite from Mozambique https://www.aglresearch.com/research-publications/sapphires-from-kina-kenya monthly 0.5 2020-09-11 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1589759294935-4OJU1956HT2E4N40XP52/Planar+concentration+of+polka+dots-50X_web.jpg Research & Publications - Sapphires from Kina, Kenya Photomicrograph taken by Christopher P. Smith; magnified 50x. https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1589137626950-WXYNF8GF6EQBNLIHGX9M/JoG_2015_Vol34_No8_Kenyan_Sapphire-1.jpg Research & Publications - Sapphires from Kina, Kenya https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1589137650502-4QUP0AXK28OTF6K57Q1Q/JoG_2015_Vol34_No8_Kenyan_Sapphire-2.jpg Research & Publications - Sapphires from Kina, Kenya https://www.aglresearch.com/research-publications/chondrondite-tanzania monthly 0.5 2020-09-11 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1589380339203-VO0SNTQTNZCW21UZWZG0/JoG_2015_Vol34_No8_Chondrodite.jpg Research & Publications - Chondrodite reportedly from Tanga, Tanzania https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1589758221222-2812GNUBXIST88LJ24VA/Healed+fissure+n+needles+3-68x-cps_web.jpg Research & Publications - Chondrodite reportedly from Tanga, Tanzania A parallel array of needle-like inclusions is present within a ‘fingerprint’ in a chondrodite reportedly from Tanga, Tanzania. Photomicrograph by Christopher P. Smith; magnified 68x. https://www.aglresearch.com/research-publications/chromium-corundum monthly 0.5 2020-09-11 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599834338329-Q63PXY2MSX7U2AI0WGD1/JoG_V34_No6_Chromium-Diffused+Corundum+_CPS-1.jpg Research & Publications - Chromium-diffused Corundum Photo by Bilal Mahmood. https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599234049734-SW743ZQSTTJOO81F6OZU/JoG_V34_No6_Chromium-Diffused+Corundum+_CPS-1.jpg Research & Publications - Chromium-diffused Corundum https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599234086439-R2HNSHQBEHMCC6098VYB/JoG_V34_No6_Chromium-Diffused+Corundum+_CPS-3.jpg Research & Publications - Chromium-diffused Corundum https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599234068021-S4MBYDX3YMTG2HFQ583Z/JoG_V34_No6_Chromium-Diffused+Corundum+_CPS-2.jpg Research & Publications - Chromium-diffused Corundum https://www.aglresearch.com/research-publications/imitation-sapphire monthly 0.5 2020-09-11 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590078657452-95SZ9RSC0DGYAY925XU4/JoG_2015_Vol34_No6_Imitation_Star_Sapphire-1.jpg Research & Publications - Quartz Imitation of Star Sapphire https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590078680045-CLIFORU32C3IEXWN227F/JoG_2015_Vol34_No6_Imitation_Star_Sapphire-2.jpg Research & Publications - Quartz Imitation of Star Sapphire https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590078382382-B02VNB5T8CHVLMKHHJH5/ImitationStarSapphire_58266-GemNote-RGB.jpg Research & Publications - Quartz Imitation of Star Sapphire Photo by Bilal Mahmood. https://www.aglresearch.com/research-publications/orange-zircon monthly 0.5 2020-09-11 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599232711142-G5ACC15OV0JC4F76F87I/JoG_V34_No5_Large+Orange+Zircon+From+Myanmar+_WMM.jpg Research & Publications - Large Orange Zircon from Myanmar https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599834569497-VUFZYZZJPMQ431CXH0TO/JoG_V34_No5_Large+Orange+Zircon+From+Myanmar+_WMM.jpg Research & Publications - Large Orange Zircon from Myanmar Photo by Bilal Mahmood https://www.aglresearch.com/research-publications/hessonite monthly 0.5 2020-09-11 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1589161103517-VJCRYEDQS3PCIDT77W77/JoG_2014_Vol34_No4_Hessonite.jpg Research & Publications - Hessonite from Somalia https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1589758966338-ZKXJVVIJY9H1BGAA50O2/Hessonite_close_web.jpg Research & Publications - Hessonite from Somalia Photo by Bilal Mahmood. https://www.aglresearch.com/research-publications/spessartine monthly 0.5 2020-09-11 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1589758286521-TD52232DH485MPDZHOB4/Spessartite-01_web.jpg Research & Publications - Spessartine from the Democratic Republic of Congo These near-end member spessartines (0.62-0.84 ct), reportedly from the Democratic Republic of Congo, display an unusual yellow-brown color. Photo by Bilal Mahmood. https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1589158774681-74KK8RVZMEVGF1QLP1MQ/JoG_2014_Vol34_No4_Spessartine-1.jpg Research & Publications - Spessartine from the Democratic Republic of Congo https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1589158795276-NBEM2DNTTKJ9UY5V4CA6/JoG_2014_Vol34_No4_Spessartine-2.jpg Research & Publications - Spessartine from the Democratic Republic of Congo https://www.aglresearch.com/research-publications/adularia-austria monthly 0.5 2020-09-11 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599757273299-KMT63HBIT8Y614MN3MI2/JoG_V34_No3_Adularia+from+Austria_MoC.jpg Research & Publications - Adularia (including Moonstone) from Austria Elongate, centipede-like inclusions are seen in one of the Austrian moonstones. Photomicrograph by M. Chaipaksa; magnified 70x. https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599757122226-Q9IPCWWAOHKJCYX18XVK/JoG_V34_No3_Adularia+from+Austria_MoC.jpg Research & Publications - Adularia (including Moonstone) from Austria https://www.aglresearch.com/research-publications/100-jeremejevite monthly 0.5 2020-09-11 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590781777054-K22FXVDQ2GYJ2UC1HXZ4/jeremejevite-2.jpg Research & Publications - A Rare 100+ ct Jeremejevite Photo by Bilal Mahmood. https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590087825806-0RXMKMUPK588ZJAUBTSG/JoG_2014_Vol34_No2_Jeremejevite-4.jpg Research & Publications - A Rare 100+ ct Jeremejevite https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590087753560-4XCOIXH6PVYSNBZURV7I/JoG_2014_Vol34_No2_Jeremejevite-1.jpg Research & Publications - A Rare 100+ ct Jeremejevite https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590087804861-ZH9J580BR8FLTGX76TA5/JoG_2014_Vol34_No2_Jeremejevite-3.jpg Research & Publications - A Rare 100+ ct Jeremejevite https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590087780101-X7F6RD5QEQ14ZIS5IH4W/JoG_2014_Vol34_No2_Jeremejevite-2.jpg Research & Publications - A Rare 100+ ct Jeremejevite https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590087848828-N6N088CWZAZJYLEZ2OLP/JoG_2014_Vol34_No2_Jeremejevite-5.jpg Research & Publications - A Rare 100+ ct Jeremejevite https://www.aglresearch.com/research-publications/Vietnam-fluorite monthly 0.5 2020-09-11 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599757626144-8P4TL7EA9C8W4GXCAIDO/JoG_V34_No3_Green+fluorite+from+Vietnam_MoC-1.jpg Research & Publications - Green Fluorite from Vietnam https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599757654315-LW7IDEZKYNK4NUNEQCLJ/JoG_V34_No3_Green+fluorite+from+Vietnam_MoC-2.jpg Research & Publications - Green Fluorite from Vietnam https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590781928676-8581Y5GFT663MCCDNRC8/Fluorite-01_web.jpg Research & Publications - Green Fluorite from Vietnam This 29.05 ct fluorite is reportedly from Cao Bang Province in northern Vietnam. Photo by Bilal Mahmood. https://www.aglresearch.com/research-publications/spinel-and-its-treatments-a-current-status-report-2d3wh monthly 0.5 2020-09-11 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599231887223-51R62LM5B0W7Z9I3GXYK/JoG_V34_No4_A+comparaison+of+r-line+PL+of+Emerald+from+different+origins_CPS-5.jpg Research & Publications - A Comparison of R-line Photoluminescence of Emeralds from Different Origins https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599231849454-MZRARQJX00QS1JESBDH5/JoG_V34_No4_A+comparaison+of+r-line+PL+of+Emerald+from+different+origins_CPS-3.jpg Research & Publications - A Comparison of R-line Photoluminescence of Emeralds from Different Origins https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599231866147-6VCHO8KUNNIDDZIO9DX2/JoG_V34_No4_A+comparaison+of+r-line+PL+of+Emerald+from+different+origins_CPS-4.jpg Research & Publications - A Comparison of R-line Photoluminescence of Emeralds from Different Origins https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599231903918-3XQ1A3IK2T3A8684J5N4/JoG_V34_No4_A+comparaison+of+r-line+PL+of+Emerald+from+different+origins_CPS-6.jpg Research & Publications - A Comparison of R-line Photoluminescence of Emeralds from Different Origins https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599231806805-0LEQIDP0SK119BGV9JZQ/JoG_V34_No4_A+comparaison+of+r-line+PL+of+Emerald+from+different+origins_CPS-1.jpg Research & Publications - A Comparison of R-line Photoluminescence of Emeralds from Different Origins https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599231974344-REC2MKXXN96EHWE9SVOW/JoG_V34_No4_A+comparaison+of+r-line+PL+of+Emerald+from+different+origins_CPS-10.jpg Research & Publications - A Comparison of R-line Photoluminescence of Emeralds from Different Origins https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599231935031-NWCBKAFWGMCKCV9NP317/JoG_V34_No4_A+comparaison+of+r-line+PL+of+Emerald+from+different+origins_CPS-8.jpg Research & Publications - A Comparison of R-line Photoluminescence of Emeralds from Different Origins https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599231516144-Y7UK6GHCBAMPCK5YLHUV/JoG_V34_No4_A+comparaison+of+r-line+PL+of+Emerald+from+different+origins_CPS-9.jpg Research & Publications - A Comparison of R-line Photoluminescence of Emeralds from Different Origins Attractive gem-quality emeralds are sourced from several world localities, and gemmological labs are often asked to identify their origin and sperate them from synthetics. R-line PL spectroscopy can help address these challenges. This rough-and-cut pair of emeralds from Colombia show the saturated green colour that is prized for stones from this locality. The crystal, known as El Itoco, weighs 94.4g. Composite photo by Bilal Mahmood. https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599231919662-H6BO09GW5KYO7UMF7WOG/JoG_V34_No4_A+comparaison+of+r-line+PL+of+Emerald+from+different+origins_CPS-7.jpg Research & Publications - A Comparison of R-line Photoluminescence of Emeralds from Different Origins https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599231827142-9VLT2MBG3GYMKWA61VSW/JoG_V34_No4_A+comparaison+of+r-line+PL+of+Emerald+from+different+origins_CPS-2.jpg Research & Publications - A Comparison of R-line Photoluminescence of Emeralds from Different Origins https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599231952546-FW870KWZP8Z7M48Z42A2/JoG_V34_No4_A+comparaison+of+r-line+PL+of+Emerald+from+different+origins_CPS-9.jpg Research & Publications - A Comparison of R-line Photoluminescence of Emeralds from Different Origins https://www.aglresearch.com/research-publications/pastel-green-sapphire-from-myanmar-burma monthly 0.5 2020-09-11 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599762486138-WG9MI6NGLMO23791MKVG/JoG_Pastel-green-sapphire-from-myanmar-2-CPS.jpg Research & Publications - Pastel Green Sapphire from Myanmar (Burma) https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599834094288-HMSFUWJSBP3P8B5N9GYQ/JoG_Pastel-green-sapphire-from-myanmar-CPS.jpg Research & Publications - Pastel Green Sapphire from Myanmar (Burma) A variety of pastel shades are shown by these sapphires (0.75 to 1.20 ct), which were recently acquired by the AGL during a research expedition to the Mogok area Myanmar. Photo by AGL. https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599762472309-A4NSFVG9SLJN8LCDRRC0/JoG_Pastel-green-sapphire-from-myanmar-CPS.jpg Research & Publications - Pastel Green Sapphire from Myanmar (Burma) https://www.aglresearch.com/research-publications/spessartine-inclusion-tanzania monthly 0.5 2020-09-11 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599230238758-L418W223LBERKR2D42BY/JoG_V34_No2_Sapphire+with+a+large+Spessartine+Inclusion+from+Songea+Tanzania_BC-1.jpg Research & Publications - Sapphire with a Large Spessartine Inclusion from Songea, Tanzania Photo by Bilal Mahmood https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599230309206-RVI458LKTORDE13LDUK7/JoG_V34_No2_Sapphire+with+a+large+Spessartine+Inclusion+from+Songea+Tanzania_BC-1.jpg Research & Publications - Sapphire with a Large Spessartine Inclusion from Songea, Tanzania https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599230324674-9JTO1IKMSX1T4E6OD3WW/JoG_V34_No2_Sapphire+with+a+large+Spessartine+Inclusion+from+Songea+Tanzania_BC-2.jpg Research & Publications - Sapphire with a Large Spessartine Inclusion from Songea, Tanzania https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599230120188-3AZ2HYHHU20BTY0NPDF8/JoG_V34_No2_Sapphire+with+a+large+Spessartine+Inclusion+from+Songea+Tanzania_BC-2.jpg Research & Publications - Sapphire with a Large Spessartine Inclusion from Songea, Tanzania Photomicrograph by Christopher P. Smith, magnified 25x. https://www.aglresearch.com/research-publications/tajik-rubies-5dk44 monthly 0.5 2020-09-11 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599229196847-LIPAA4P090YY3326HLL5/JoG_V34_No1_Blue+Chrysocolla+Chalcedony+from+Peru_BC_Page_1.jpg Research & Publications - Blue Chrysocolla Chalcedony from Peru https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599228476470-AVJFE2IZMCPQ3I551KUI/JoG_V34_No1_Blue+Chrysocolla+Chalcedony+from+Peru_BC_Page_1.jpg Research & Publications - Blue Chrysocolla Chalcedony from Peru Photo by Bilal Mahmood. https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599229215554-04BB2YKW8U21Z75K26MK/JoG_V34_No1_Blue+Chrysocolla+Chalcedony+from+Peru_BC_Page_2.jpg Research & Publications - Blue Chrysocolla Chalcedony from Peru https://www.aglresearch.com/research-publications/cobalt-colored-composite-sapphires monthly 0.5 2020-09-11 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590607254359-KAFC16PE0PQ28Y35L81U/InColor_Spring2013_Cobalt+Coated+Sapphire-5.jpg Research & Publications - Cobalt-Colored Composite Sapphires https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590607135121-BIXVJJLIM67RFCDW63GE/InColor_Spring2013_Cobalt+Coated+Sapphire-1.jpg Research & Publications - Cobalt-Colored Composite Sapphires https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590607229740-1DFZTJ7N2WLWX1D6ZLL2/InColor_Spring2013_Cobalt+Coated+Sapphire-4.jpg Research & Publications - Cobalt-Colored Composite Sapphires https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590607050656-GL583J8T98Q7ZUG1XHZ9/InColor_Spring2013_Cobalt+Coated+Sapphire_placeholder.jpg Research & Publications - Cobalt-Colored Composite Sapphires Fine needles of rutile were also observed in the natural sapphire component of these composite sapphires. Photomicrograph by Christopher P. Smith, 72x. https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590607196251-L835MSEEQ1XQJHCMP66C/InColor_Spring2013_Cobalt+Coated+Sapphire-3.jpg Research & Publications - Cobalt-Colored Composite Sapphires https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590607273825-T2N6SH5F2HAJ24HF7HEZ/InColor_Spring2013_Cobalt+Coated+Sapphire-6.jpg Research & Publications - Cobalt-Colored Composite Sapphires https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590607167279-D812AKSNCZLI8P6QODHK/InColor_Spring2013_Cobalt+Coated+Sapphire-2.jpg Research & Publications - Cobalt-Colored Composite Sapphires https://www.aglresearch.com/research-publications/cobalt-sapphire-press-release monthly 0.5 2020-09-11 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590605213899-IWT203RVL97BSXY8EGPB/PR_01282013_Cobalt_Composite_Sapphire-3.jpg Research & Publications - Cobalt-Colored Composite Sapphires Now Entering the Market https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590605252694-2ZDCS4G4C2051NMQ8ZSF/PR_01282013_Cobalt_Composite_Sapphire-5.jpg Research & Publications - Cobalt-Colored Composite Sapphires Now Entering the Market https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590605155212-ES6XCCE1IBROA03EJ2MZ/PR_01282013_Cobalt_Composite_Sapphire-1.jpg Research & Publications - Cobalt-Colored Composite Sapphires Now Entering the Market https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590605187349-B5IIJMRXF4GLHK6PDITK/PR_01282013_Cobalt_Composite_Sapphire-2.jpg Research & Publications - Cobalt-Colored Composite Sapphires Now Entering the Market https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590606214433-MAPRHIN9WVI7M5PCOHST/PR_01282013_Cobalt_Composite_Sapphire_placeholder.jpg Research & Publications - Cobalt-Colored Composite Sapphires Now Entering the Market Photomicrograph by Christopher P. Smith magnified 68x. https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590605236333-S82HTS5GNVNITUDS6FX0/PR_01282013_Cobalt_Composite_Sapphire-4.jpg Research & Publications - Cobalt-Colored Composite Sapphires Now Entering the Market https://www.aglresearch.com/research-publications/buddha-blue monthly 0.5 2020-09-11 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599748412298-RFUWHVYGXMBU4NQIFMSF/WJA_Summer+2012_Buddha+Blue+Sapphire_CPS-2.jpg Research & Publications - The Buddha Blue https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599748394360-STULU1GPIXX87Q6LPAY0/WJA_Summer+2012_Buddha+Blue+Sapphire_CPS-1.jpg Research & Publications - The Buddha Blue https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599748462803-HUX0FG85RRZD3P54GLYS/WJA_Summer+2012_Buddha+Blue+Sapphire_CPS-4.jpg Research & Publications - The Buddha Blue https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599747695920-VPTIL3JM504DXFO0WFO8/WJA_Summer+2012_Buddha+Blue+Sapphire_CPS_Page_3.jpg Research & Publications - The Buddha Blue A two-phase inclusion with a moving gas bubble. Microphotograph by Christopher P. Smith, AGL, 32x. https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599748427880-NBWLQ8K55VRDSPA4204G/WJA_Summer+2012_Buddha+Blue+Sapphire_CPS-3.jpg Research & Publications - The Buddha Blue https://www.aglresearch.com/research-publications/spinel-and-its-treatments-a-current-status-report monthly 0.5 2020-09-11 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598639224814-9VXM1AJBN90E3M7FNPUR/InC_Spring+2012_Spinel+and+its+treatments+-+A+current+status+report_CPS_Page_1.jpg Research & Publications - Spinel and its Treatments: A Current Status Report https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598639284475-UMXF230IN0BY04LODFD2/InC_Spring+2012_Spinel+and+its+treatments+-+A+current+status+report_CPS_Page_5.jpg Research & Publications - Spinel and its Treatments: A Current Status Report https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598639257096-W4ACOO954BUZ8Y9P6OC9/InC_Spring+2012_Spinel+and+its+treatments+-+A+current+status+report_CPS_Page_3.jpg Research & Publications - Spinel and its Treatments: A Current Status Report https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598639240835-6DLZF9HKZROEEBWY4GRB/InC_Spring+2012_Spinel+and+its+treatments+-+A+current+status+report_CPS_Page_2.jpg Research & Publications - Spinel and its Treatments: A Current Status Report https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598639391119-VQNKG8U79HPL174251ZD/InC_Spring+2012_Spinel+and+its+treatments+-+A+current+status+report_CPS_Page_4.jpg Research & Publications - Spinel and its Treatments: A Current Status Report Photomicrograph: Christopher P. Smith, 75x https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598639269161-6RZZBPFWWCIF0M1RCWRA/InC_Spring+2012_Spinel+and+its+treatments+-+A+current+status+report_CPS_Page_4.jpg Research & Publications - Spinel and its Treatments: A Current Status Report https://www.aglresearch.com/research-publications/irradiated-emeralds monthly 0.5 2020-09-11 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590675321303-0W1NS77N85Y1LRU29HKN/PR_01032012_Irradiated_Emeralds-2.jpg Research & Publications - AGL Identifies Irradiated Colombian Emeralds https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590675295970-5OKSDU1KPB7AQ4DKV9WH/PR_01032012_Irradiated_Emeralds.jpg Research & Publications - AGL Identifies Irradiated Colombian Emeralds https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590675489417-D53WYN6PXIDCF1Y6HHY2/AGL+IDENTIFIES+IRRADIATED+EMERALDS-3+Jan+2012-3_placeholder.jpg Research & Publications - AGL Identifies Irradiated Colombian Emeralds Photomicrograph by Christopher P. Smith, magnified 32x. https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590675338532-1TQS4VQZPDDLXCWPPWR6/PR_01032012_Irradiated_Emeralds-3.jpg Research & Publications - AGL Identifies Irradiated Colombian Emeralds https://www.aglresearch.com/research-publications/lead-glass-rubies monthly 0.5 2020-09-11 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590686932742-0TDBXLIAZI82463EC3CA/PR_11292011_hybrid_composite_ruby-1.jpg Research & Publications - GRS and AGL Collaborate on Research and Harmonize the Description of Lead-Glass Treated Rubies https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590686954161-QH8OQC7KZY83Y83ANJKM/PR_11292011_hybrid_composite_ruby-2.jpg Research & Publications - GRS and AGL Collaborate on Research and Harmonize the Description of Lead-Glass Treated Rubies https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590780917897-V0YOF1EDBX67U9UKUUQU/GRS-AGL.jpg Research & Publications - GRS and AGL Collaborate on Research and Harmonize the Description of Lead-Glass Treated Rubies https://www.aglresearch.com/research-publications/ruby-treatments monthly 0.5 2020-09-11 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590672913047-C7P59XHP3BEOZFQIJU1R/CG_Vol31_No4_2010_RubiesTreatedUntreated-2.jpg Research & Publications - Rubies: Untreated and Treated https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590672933452-SIGMRWF9GPATUMYT661D/CG_Vol31_No4_2010_RubiesTreatedUntreated-3.jpg Research & Publications - Rubies: Untreated and Treated https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590672884993-VHZ2285TJRBIDKPBKWL6/CG_Vol31_No4_2010_RubiesTreatedUntreated-1.jpg Research & Publications - Rubies: Untreated and Treated https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590672956575-RV0NRZ37MLR421YKK6DV/CG_Vol31_No4_2010_RubiesTreatedUntreated-4.jpg Research & Publications - Rubies: Untreated and Treated https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590673020528-E73ZWR7UOR22RMYWFNYJ/CG_Vol31_No4_2010_RubiesTreatedUntreated-7.jpg Research & Publications - Rubies: Untreated and Treated https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590672980229-NHZQBMVV1XMX57EF1STG/CG_Vol31_No4_2010_RubiesTreatedUntreated-5.jpg Research & Publications - Rubies: Untreated and Treated https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590672999577-7HFC2A847BWSRS7I79KF/CG_Vol31_No4_2010_RubiesTreatedUntreated-6.jpg Research & Publications - Rubies: Untreated and Treated https://www.aglresearch.com/research-publications/composite-ruby-2007-7fjs9 monthly 0.5 2020-09-11 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590687945029-XCT80E74XI2UP15VK6OV/PR_05032010_new_ruby_treatment-1.jpg Research & Publications - AGL Will Not be Classifying New Ruby Treatment as Composite Ruby https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590687442788-IU2RV3L7YFRR7Y1SGV99/PR_09292011_new_ruby_treatmentFAQ.jpg Research & Publications - AGL Will Not be Classifying New Ruby Treatment as Composite Ruby https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590687967874-MOEJKGB5K7GEJZZYVBZO/PR_05032010_new_ruby_treatment-2.jpg Research & Publications - AGL Will Not be Classifying New Ruby Treatment as Composite Ruby https://www.aglresearch.com/research-publications/ruby-treatment-thailand monthly 0.5 2020-08-28 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598638596000-XIWAG9ITYYD6WYR2L7P4/InC_Spring+2010_New+ruby+heat+treatment+from+Thailand_CPS_Page_2.jpg Research & Publications - AGL Discusses the Latest “New” Ruby Heat Treatment Coming out of Thailand https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598638581878-V2ZKPDAKD4WC95WA5CU2/InC_Spring+2010_New+ruby+heat+treatment+from+Thailand_CPS_Page_1.jpg Research & Publications - AGL Discusses the Latest “New” Ruby Heat Treatment Coming out of Thailand https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598638613056-C896U72U163ARMFCXA2T/InC_Spring+2010_New+ruby+heat+treatment+from+Thailand_CPS_Page_3.jpg Research & Publications - AGL Discusses the Latest “New” Ruby Heat Treatment Coming out of Thailand https://www.aglresearch.com/research-publications/mozambique-rubies monthly 0.5 2020-09-11 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598555100733-LA3A1HGEHGN3QQQ21VGT/G%26J_Spring+2010_Mozambique+ruby_CPS-2.jpg Research & Publications - Mozambique Rubies https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598555226144-GUEKZ7PWL7LN625ZKO5Q/G%26J_Spring+2010_Mozambique+ruby_CPS-3.jpg Research & Publications - Mozambique Rubies https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598555172933-2OWPPHE80PBP3JHSZ3L7/G%26J_Spring+2010_Mozambique+ruby_CPS-1.jpg Research & Publications - Mozambique Rubies https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598555188697-Q83VIFXMN9A3JAA7T129/JNA_Nov2005_some+charachteristics_lead_glass_filled_corundum-2.jpg Research & Publications - Mozambique Rubies https://www.aglresearch.com/research-publications/lead-glass-filled-ruby-set-in-antique-jewelry monthly 0.5 2020-09-11 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598641571834-US0MEDFDVMY03CIATY6X/InC_Summer+2010_Lead+Glass+filled+ruby+in+antique+jewelery_CPS+copy.jpg Research & Publications - Lead Glass Filled Ruby Set in Antique Jewelry https://www.aglresearch.com/research-publications/an-exclusive-interview-with-christopher-p-smith-president-and-new-owner-of-the-american-gemological-laboratories-agl monthly 0.5 2020-09-11 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598640224502-IBFI3SJA3HF1UQYVIIDA/InC_Summer+2009_CPS+Interview+New+Owner+AGL_CPS_Page_2.jpg Research & Publications - An Exclusive Interview With Christopher P. Smith, President and New Owner of the American Gemological Laboratories (AGL) https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598640209148-9ANZ25JUP5TZZDWLZCWI/InC_Summer+2009_CPS+Interview+New+Owner+AGL_CPS_Page_1.jpg Research & Publications - An Exclusive Interview With Christopher P. Smith, President and New Owner of the American Gemological Laboratories (AGL) https://www.aglresearch.com/research-publications/argyle-mine-australia monthly 0.5 2020-09-11 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598630678786-5ZB2ATS5ZG5LZ7LODXH0/GG_Spring+2009_Gray+to+blue+to+violet+H+rich+diamonds+from+the+Argyle+Mine%2C+Australia_CPS_Page_05.jpg Research & Publications - Gray-to-Blue-to-Violet Hydrogren-Rich Diamonds From The Argyle Mine, Australia https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598630822169-6XBE78NEFFU712TSDWVR/GG_Spring+2009_Gray+to+blue+to+violet+H+rich+diamonds+from+the+Argyle+Mine%2C+Australia_CPS_Page_14.jpg Research & Publications - Gray-to-Blue-to-Violet Hydrogren-Rich Diamonds From The Argyle Mine, Australia https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598630738101-66XM891YACPVRCIAWJBE/GG_Spring+2009_Gray+to+blue+to+violet+H+rich+diamonds+from+the+Argyle+Mine%2C+Australia_CPS_Page_09.jpg Research & Publications - Gray-to-Blue-to-Violet Hydrogren-Rich Diamonds From The Argyle Mine, Australia https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598630617846-E41BAZWCY399X3KWI1TV/GG_Spring+2009_Gray+to+blue+to+violet+H+rich+diamonds+from+the+Argyle+Mine%2C+Australia_CPS_Page_01.jpg Research & Publications - Gray-to-Blue-to-Violet Hydrogren-Rich Diamonds From The Argyle Mine, Australia https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598630807356-EBK05PAF109K8FSB2QNJ/GG_Spring+2009_Gray+to+blue+to+violet+H+rich+diamonds+from+the+Argyle+Mine%2C+Australia_CPS_Page_13.jpg Research & Publications - Gray-to-Blue-to-Violet Hydrogren-Rich Diamonds From The Argyle Mine, Australia https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598630891587-W0ADOS9QPWMTV6P34AXB/image-asset.jpeg Research & Publications - Gray-to-Blue-to-Violet Hydrogren-Rich Diamonds From The Argyle Mine, Australia https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598630771746-7ITSNGN6UIZWJRRJZN0V/GG_Spring+2007_Pink-To-Red+Coral_CPS_Page_13.jpg Research & Publications - Gray-to-Blue-to-Violet Hydrogren-Rich Diamonds From The Argyle Mine, Australia https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598631055307-RE0UU1HG38EE664V25L5/GG_Spring+2009_Gray+to+blue+to+violet+H+rich+diamonds+from+the+Argyle+Mine%2C+Australia_CPS_Page_05.jpg Research & Publications - Gray-to-Blue-to-Violet Hydrogren-Rich Diamonds From The Argyle Mine, Australia HGBV diamonds exhibited different types of characteristic internal features. These included (left, magnified 52x) coarsely textured channels, where chemical etching occured along preexisting cracks or cleavages; they can sometimes be very deep, as seen in the 0.72 ct stone in the center (magnified 40x). Another type of feature (right, magnified 52x) either etch or growth tubes, consists of hollow, icicle-like acicular inclusions. Photomicrographs by C.P. Smith. https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598630690668-9W6XV584PM6A3GLIXFGT/GG_Spring+2009_Gray+to+blue+to+violet+H+rich+diamonds+from+the+Argyle+Mine%2C+Australia_CPS_Page_06.jpg Research & Publications - Gray-to-Blue-to-Violet Hydrogren-Rich Diamonds From The Argyle Mine, Australia https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598630761888-BSUIVN484R7V5DWDXXKM/GG_Spring+2007_Pink-To-Red+Coral_CPS_Page_12.jpg Research & Publications - Gray-to-Blue-to-Violet Hydrogren-Rich Diamonds From The Argyle Mine, Australia https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598630705195-0SVF1NHBAVPBYI55CZI6/GG_Spring+2009_Gray+to+blue+to+violet+H+rich+diamonds+from+the+Argyle+Mine%2C+Australia_CPS_Page_07.jpg Research & Publications - Gray-to-Blue-to-Violet Hydrogren-Rich Diamonds From The Argyle Mine, Australia https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598630724953-VLQ8AMCJ1OJJGFFIK5F4/GG_Spring+2009_Gray+to+blue+to+violet+H+rich+diamonds+from+the+Argyle+Mine%2C+Australia_CPS_Page_08.jpg Research & Publications - Gray-to-Blue-to-Violet Hydrogren-Rich Diamonds From The Argyle Mine, Australia https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598630857723-PCLJJG5SFO8U4WAMSDT4/GG_Spring+2009_Gray+to+blue+to+violet+H+rich+diamonds+from+the+Argyle+Mine%2C+Australia_CPS_Page_16.jpg Research & Publications - Gray-to-Blue-to-Violet Hydrogren-Rich Diamonds From The Argyle Mine, Australia https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598630632508-OK4NE88TSR81BKJWE02G/GG_Spring+2009_Gray+to+blue+to+violet+H+rich+diamonds+from+the+Argyle+Mine%2C+Australia_CPS_Page_02.jpg Research & Publications - Gray-to-Blue-to-Violet Hydrogren-Rich Diamonds From The Argyle Mine, Australia https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598630838378-T0QHZXJVJI5PKBGHVW6F/GG_Spring+2009_Gray+to+blue+to+violet+H+rich+diamonds+from+the+Argyle+Mine%2C+Australia_CPS_Page_15.jpg Research & Publications - Gray-to-Blue-to-Violet Hydrogren-Rich Diamonds From The Argyle Mine, Australia https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598630664253-GW48RTS9PVF15WR7UUGT/GG_Spring+2009_Gray+to+blue+to+violet+H+rich+diamonds+from+the+Argyle+Mine%2C+Australia_CPS_Page_04.jpg Research & Publications - Gray-to-Blue-to-Violet Hydrogren-Rich Diamonds From The Argyle Mine, Australia https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598630874494-47LQUQ2FOUDR7BTY2FRA/GG_Spring+2009_Gray+to+blue+to+violet+H+rich+diamonds+from+the+Argyle+Mine%2C+Australia_CPS_Page_17.jpg Research & Publications - Gray-to-Blue-to-Violet Hydrogren-Rich Diamonds From The Argyle Mine, Australia https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598630751618-95BS3OGGUDMYM7FMYJ5R/GG_Spring+2007_Pink-To-Red+Coral_CPS_Page_11.jpg Research & Publications - Gray-to-Blue-to-Violet Hydrogren-Rich Diamonds From The Argyle Mine, Australia https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598630647466-H686OSES3OPAV41RU7OW/GG_Spring+2009_Gray+to+blue+to+violet+H+rich+diamonds+from+the+Argyle+Mine%2C+Australia_CPS_Page_03.jpg Research & Publications - Gray-to-Blue-to-Violet Hydrogren-Rich Diamonds From The Argyle Mine, Australia https://www.aglresearch.com/research-publications/coated-tanzanites-wogc monthly 0.5 2020-09-11 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590773970000-4TUVDG1AJX4WJXKNYKQH/WoGC_Autumn2008_Coated_Tanz-2.jpg Research & Publications - Coated Tanzanite Hits the Market https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590773953358-9BBB2J123PI7IQ6K971Y/WoGC_Autumn2008_Coated_Tanz-1.jpg Research & Publications - Coated Tanzanite Hits the Market https://www.aglresearch.com/research-publications/forensic-gemology monthly 0.5 2020-09-11 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590775473867-VPTPHI9VGA21L86ANCUZ/WoGC_Autumn2008_ForensicGemology_Page_3.jpg Research & Publications - Forensic Gemology: Geographic Origin Determinations https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599834899562-BAGF96FEGF8C4T4PCY19/WoGC_Autumn2008_ForensicGemology_Page_2.jpg Research & Publications - Forensic Gemology: Geographic Origin Determinations Throughout much of history in the gem trade, the geographic origin of a ruby or sapphire has been used to communicate not only the source from which the gem derived, but also a specific visual appearance or quality that was considered typical of that area. Burma or Burma-type rubies typically exhibited a bright, vivid red color, whereas Thai or Thai-type rubies where commonly darker with a purplish color modifier. Photo by AGL. https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590775385239-E6TCUN26TKDY45NLS4HQ/WoGC_Autumn2008_ForensicGemology_Page_1.jpg Research & Publications - Forensic Gemology: Geographic Origin Determinations https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590775428005-KID6RKY3BS1HKIJRBJI9/WoGC_Autumn2008_ForensicGemology_Page_2.jpg Research & Publications - Forensic Gemology: Geographic Origin Determinations https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590775569432-KXHHGNVAUU2RKS4GP1EB/WoGC_Autumn2008_ForensicGemology_Page_5.jpg Research & Publications - Forensic Gemology: Geographic Origin Determinations https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590775523124-RL9M44GGT4DJH4E6UKDI/WoGC_Autumn2008_ForensicGemology_Page_4.jpg Research & Publications - Forensic Gemology: Geographic Origin Determinations https://www.aglresearch.com/research-publications/ban-burma-ruby monthly 0.5 2020-05-29 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590773426368-NBDM1DZZ4285TQKGDHHL/WoGC_Autumn2008_Burma_Ban_Alt_Sources-3.jpg Research & Publications - The Burma Ruby Ban and Alternate Ruby Sources https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590773185919-4RXF4CMORA6IUNT4PWPA/WoGC_Autumn2008_Burma_Ban_Alt_Sources-3.jpg Research & Publications - The Burma Ruby Ban and Alternate Ruby Sources Photomicrograph by Christopher Smith, 45x. https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590773398535-EF713ZP45CMI47YK0KS4/WoGC_Autumn2008_Burma_Ban_Alt_Sources-2.jpg Research & Publications - The Burma Ruby Ban and Alternate Ruby Sources https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590773376117-5UZWPV4NODSJ40Y56AAY/WoGC_Autumn2008_Burma_Ban_Alt_Sources-1.jpg Research & Publications - The Burma Ruby Ban and Alternate Ruby Sources https://www.aglresearch.com/research-publications/incolor2008-cge monthly 0.5 2020-08-27 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598548455848-CL2LY3MW5X5NQ2V9LXFB/InColor_Summer2008_CGE-1.jpg Research & Publications - Colored Gemstone Exchange - the first B2B platform devoted strictly to color https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598548623316-CQ2UHPR65VIP3G09QBRZ/InColor_Summer2008_CGE-2.jpg Research & Publications - Colored Gemstone Exchange - the first B2B platform devoted strictly to color https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598548744856-NJG0VRZMWIMTTWDDO91U/InColor_Summer2008_CGE.jpg Research & Publications - Colored Gemstone Exchange - the first B2B platform devoted strictly to color https://www.aglresearch.com/research-publications/tanzanite-coating-update monthly 0.5 2020-05-28 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590682292916-6INDZJSM719QK0K7SRZO/PR_05232008_New_Tanzanite_Treatment_2.jpg Research & Publications - AGTA-GTC and AGL Identify New Tanzanite Treatment - An Update https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590682269812-08OCKJBV1SKX9E70RW4N/PR_05232008_New_Tanzanite_Treatment_1.jpg Research & Publications - AGTA-GTC and AGL Identify New Tanzanite Treatment - An Update https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590682235914-LB6KYO58MC99XL0VNOF7/image-asset.jpeg Research & Publications - AGTA-GTC and AGL Identify New Tanzanite Treatment - An Update https://www.aglresearch.com/research-publications/tanzanite-coating monthly 0.5 2020-05-28 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590681239490-YHXACQ3QRQ71K7X1HF1U/Coated+Tanzanite+-+AGL+Press+Release-_placeholder.jpg Research & Publications - AGL Identifies New Coating Treatment on Tanzanite Photo by AGL. https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590681192288-IMBOSIKGR1AS62IKDMLM/PR_05212008_Cobalt_Coated_Tanzanite-3.jpg Research & Publications - AGL Identifies New Coating Treatment on Tanzanite https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590681161584-U5Y9BA9GNYIR66H48ESO/PR_05212008_Cobalt_Coated_Tanzanite-1.jpg Research & Publications - AGL Identifies New Coating Treatment on Tanzanite https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590681181921-JZJUATH0M8HYL2Q8VKP3/PR_11122007_Composite_Ruby_First-2.jpg Research & Publications - AGL Identifies New Coating Treatment on Tanzanite https://www.aglresearch.com/research-publications/inside-pink-diamonds monthly 0.5 2020-05-29 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590765318875-YH4A0X9O1YBEBFUAMDGY/RP_2008_Vol31_No14_inside_pink_diamonds-2.jpg Research & Publications - Inside Pink Diamonds https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590765589028-MYXTUM9Y978H1MZHU0B2/RP_2008_Vol31_No14_inside_pink_diamonds.jpg Research & Publications - Inside Pink Diamonds Photomicrograph by Christopher P. Smith, 52x. Diamond provided by L.J. West Diamonds Inc. https://www.aglresearch.com/research-publications/a-closer-look-at-vietnamese-spinel monthly 0.5 2020-08-28 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598637549997-Y33259WIIOA1FT8LARUG/InC_Spring+2008_A+Closer+Look+at+Vienamese+Spinel_CPS-2.jpg Research & Publications - A Closer Look at Vietnamese Spinel https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598637564254-OXKCA54S0DD6D5HKYN4R/InC_Spring+2008_A+Closer+Look+at+Vienamese+Spinel_CPS-3.jpg Research & Publications - A Closer Look at Vietnamese Spinel https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598637533444-0PNDWVEEDR3HWYEJKGI7/InC_Spring+2008_A+Closer+Look+at+Vienamese+Spinel_CPS-1.jpg Research & Publications - A Closer Look at Vietnamese Spinel https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598637487792-006WGVJ3EZ7DNVZHWJ1L/InC_Spring+2008_A+Closer+Look+at+Vienamese+Spinel_CPS-3.jpg Research & Publications - A Closer Look at Vietnamese Spinel Healed fractures composed of aligned octahedra of various sizes are commonly present. Photomicrograph Christopher P. Smith, 58x. https://www.aglresearch.com/research-publications/composite-ruby-2007 monthly 0.5 2020-09-11 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590608157890-0SFAQXGGYKF78RZH2NIF/PR_11122007_Composite_Ruby_First-1.jpg Research & Publications - AGL Modifies its Disclosure Policy on Lead-Glass Filled Rubies https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590608245014-CFHSST7RVW6Z8CYJSQGK/PR_11122007_Composite_Ruby_First-4.jpg Research & Publications - AGL Modifies its Disclosure Policy on Lead-Glass Filled Rubies https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590608264950-5FZHOW6KKRB59UI7MDYJ/PR_11122007_Composite_Ruby_First-5.jpg Research & Publications - AGL Modifies its Disclosure Policy on Lead-Glass Filled Rubies https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590608182799-YSD3AXRPVIDSJD145MQ7/PR_11122007_Composite_Ruby_First-2.jpg Research & Publications - AGL Modifies its Disclosure Policy on Lead-Glass Filled Rubies https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590608203786-CEPHX5QTQ92SZD2YEJG0/PR_11122007_Composite_Ruby_First-3.jpg Research & Publications - AGL Modifies its Disclosure Policy on Lead-Glass Filled Rubies https://www.aglresearch.com/research-publications/gg-kyanite monthly 0.5 2020-08-28 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598551559195-N97SD635CF6RWXUHX5UI/GG_Fall+2007_kyanite+from+Madagascar-2.jpg Research & Publications - Cr/V-bearing Kyanite from Madagascar https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598551758874-U07ZKOFDRK1AWVSLOH6Y/GG_Fall+2007_kyanite+from+Madagascar-2.jpg Research & Publications - Cr/V-bearing Kyanite from Madagascar https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598551779230-3MQNY6JLME2T6XESH1C7/GG_Fall+2007_kyanite+from+Madagascar-3.jpg Research & Publications - Cr/V-bearing Kyanite from Madagascar https://www.aglresearch.com/research-publications/pink-to-red-coral monthly 0.5 2020-08-28 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598629707411-9CA9FUQY7R63PDFTOTHB/GG_Spring+2007_Pink-To-Red+Coral_CPS_Page_04.jpg Research & Publications - Pink-to-Red Coral: A Guide to Determining Origin of Color https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598629690187-OK7LLCOXXE7LHGOAPVUZ/GG_Spring+2007_Pink-To-Red+Coral_CPS_Page_03.jpg Research & Publications - Pink-to-Red Coral: A Guide to Determining Origin of Color https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598629720486-F6J1PO5TQHP0QZY2MDC9/GG_Spring+2007_Pink-To-Red+Coral_CPS_Page_05.jpg Research & Publications - Pink-to-Red Coral: A Guide to Determining Origin of Color https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598629752968-63MFWV8DAT7O6OJ6SJEU/GG_Spring+2007_Pink-To-Red+Coral_CPS_Page_07.jpg Research & Publications - Pink-to-Red Coral: A Guide to Determining Origin of Color https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598629669158-PTOK82PW2C1TXK54T9VL/GG_Spring+2007_Pink-To-Red+Coral_CPS_Page_02.jpg Research & Publications - Pink-to-Red Coral: A Guide to Determining Origin of Color https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598629735135-449J9GBUAD5NM0BXYR8Y/GG_Spring+2007_Pink-To-Red+Coral_CPS_Page_06.jpg Research & Publications - Pink-to-Red Coral: A Guide to Determining Origin of Color https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598629796261-CU9J4EHBX4Q4XHP53SJC/GG_Spring+2007_Pink-To-Red+Coral_CPS_Page_10.jpg Research & Publications - Pink-to-Red Coral: A Guide to Determining Origin of Color https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598629812253-G823B48AIN2EFS0OCC49/GG_Spring+2007_Pink-To-Red+Coral_CPS_Page_11.jpg Research & Publications - Pink-to-Red Coral: A Guide to Determining Origin of Color https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598629466777-XCMKCFM23GEOLMRS53IP/GG_Spring+2007_Pink-To-Red+Coral_CPS_Page_08.jpg Research & Publications - Pink-to-Red Coral: A Guide to Determining Origin of Color The characteristic “open” structure of Melithaea ochracaea is evident whether the coral is fashioned with the channels open (above, magnified 15x) or if has been impregnated with a polymer. Photomicrograph by C.P. Smith. https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598629782932-SSD93RUWALBDQ07LPB9P/GG_Spring+2007_Pink-To-Red+Coral_CPS_Page_09.jpg Research & Publications - Pink-to-Red Coral: A Guide to Determining Origin of Color https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598629826884-KTZT78P1D90RK87MGDWI/GG_Spring+2007_Pink-To-Red+Coral_CPS_Page_12.jpg Research & Publications - Pink-to-Red Coral: A Guide to Determining Origin of Color https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598629769514-S0NWHVA27EHFG78Q6XUJ/GG_Spring+2007_Pink-To-Red+Coral_CPS_Page_08.jpg Research & Publications - Pink-to-Red Coral: A Guide to Determining Origin of Color https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598629841964-H9EXSFVH28LI2F9SW6WU/GG_Spring+2007_Pink-To-Red+Coral_CPS_Page_13.jpg Research & Publications - Pink-to-Red Coral: A Guide to Determining Origin of Color https://www.aglresearch.com/research-publications/edward-gueblin monthly 0.5 2020-05-29 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590175715106-1NFFCOFJDC591XDQU8OM/GG_Vol12_Winter2005_Gueblin-2.jpg Research & Publications - A Gemological Pioneer - Dr. Edward J. Gueblin https://www.aglresearch.com/research-publications/characteristics-lead-glass-corundum monthly 0.5 2020-05-28 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590688560545-CPXK139UBD5QW7WS63H5/JNA_Nov2005_some+charachteristics_lead_glass_filled_corundum-2.jpg Research & Publications - Some Characteristics of Lead-Glass-Filled Corundum https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590688527667-CQYET11JV2R5HH94NV04/JNA_Nov2005_some+charachteristics_lead_glass_filled_corundum_1.jpg Research & Publications - Some Characteristics of Lead-Glass-Filled Corundum https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590688611521-7AMRVFOIVYY6KBAUQDOU/JNA_Nov2005_some+charachteristics_lead_glass_filled_corundum_placeholder.jpg Research & Publications - Some Characteristics of Lead-Glass-Filled Corundum Photomicrograph by Christopher. P. Smith, 18x magnification. https://www.aglresearch.com/research-publications/poudretteite-a-rare-gem-species-from-the-mogok-valley monthly 0.5 2020-09-10 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599749900047-HFHEPIUQFYOWM1VW0HWC/Poudretteite-A-Rare-Gem-Species-from-the-Mogok-Valley_Page_2.jpg Research & Publications - Poudretteite: A Rare Gem Species From the Mogok Valley https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599749985659-XZ8I2H317LN065MAHL50/Poudretteite-A-Rare-Gem-Species-from-the-Mogok-Valley_Page_8.jpg Research & Publications - Poudretteite: A Rare Gem Species From the Mogok Valley https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599749943183-A29JAO2FO38SB5VUMEXL/Poudretteite-A-Rare-Gem-Species-from-the-Mogok-Valley_Page_5.jpg Research & Publications - Poudretteite: A Rare Gem Species From the Mogok Valley https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599749927189-QLZGMO28SQEF8YEL8XTI/Poudretteite-A-Rare-Gem-Species-from-the-Mogok-Valley_Page_4.jpg Research & Publications - Poudretteite: A Rare Gem Species From the Mogok Valley https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599749912483-NO16TQW7078TFIEH4TF6/Poudretteite-A-Rare-Gem-Species-from-the-Mogok-Valley_Page_3.jpg Research & Publications - Poudretteite: A Rare Gem Species From the Mogok Valley https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599749956544-FRFNW5I2S41L3NS5E2AN/Poudretteite-A-Rare-Gem-Species-from-the-Mogok-Valley_Page_6.jpg Research & Publications - Poudretteite: A Rare Gem Species From the Mogok Valley https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599750221596-MT6FZB2YDSGJLDAUCEFL/Poudretteite-A-Rare-Gem-Species-from-the-Mogok-Valley_Page_3.jpg Research & Publications - Poudretteite: A Rare Gem Species From the Mogok Valley A healed fissure that traverses one side of this extraordinary gemstone consists of equidimensional-to-oblong liquid and liquid-gas inclusions in a parallel formation. Photomicrograph by C.P. Smith; magnified 28x. https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599749887065-KRECB1Z4SKYTDZS8TUEV/Poudretteite-A-Rare-Gem-Species-from-the-Mogok-Valley_Page_1.jpg Research & Publications - Poudretteite: A Rare Gem Species From the Mogok Valley https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599749972759-P8PD8NQ3H7NL6MZ1763W/Poudretteite-A-Rare-Gem-Species-from-the-Mogok-Valley_Page_7.jpg Research & Publications - Poudretteite: A Rare Gem Species From the Mogok Valley https://www.aglresearch.com/research-publications/gem-treatments monthly 0.5 2020-08-27 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598552824546-17NZ1OLL36IYVJW9YOTX/InColor_Winter2020_ColorCodex-4.jpg Research & Publications - Chart of Commercially Available Gem Treatments https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598552946755-4UNACCAHK53A77O3WE4E/InColor_Winter2020_ColorCodex-7.jpg Research & Publications - Chart of Commercially Available Gem Treatments https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598552707363-8ZVXQ0ADN425FGM6QWR2/G%26G+Winter+2002Chart+Gem+Treatments-2.jpg Research & Publications - Chart of Commercially Available Gem Treatments https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598552789641-5C7M0CDHL54LXPUB0WEC/G%26G+Winter+2002Chart+Gem+Treatments-3.jpg Research & Publications - Chart of Commercially Available Gem Treatments https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598552805718-ILS48YVGM9XOU8KZRIGZ/G%26G+Winter+2002Chart+Gem+Treatments-4.jpg Research & Publications - Chart of Commercially Available Gem Treatments https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598552931004-439M09PN2I5RPVH7CWH6/G%26G+Winter+2002Chart+Gem+Treatments-7.jpg Research & Publications - Chart of Commercially Available Gem Treatments https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598552837499-Z202BFLJA8YBBRCXXZ9N/G%26G+Winter+2002Chart+Gem+Treatments-6.jpg Research & Publications - Chart of Commercially Available Gem Treatments https://www.aglresearch.com/research-publications/diffusion-ruby-proves-to-be-synthetic-ruby-overgrowth-on-natural-corundum monthly 0.5 2020-09-11 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599763285112-MXUNF5HIUEYWX7JZD8VI/%E2%80%9CDiffusion-Ruby%E2%80%9D-Proves-to-be-Synthetic-Ruby-Overgrowth-on-Natural-Corundum_Page_1.jpg Research & Publications - “Diffusion Ruby” Proves to be Synthetic Ruby Overgrowth on Natural Corundum https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599763507361-SCG899KUSW3BP14QEV6L/%E2%80%9CDiffusion-Ruby%E2%80%9D-Proves-to-be-Synthetic-Ruby-Overgrowth-on-Natural-Corundum_Page_4.jpg Research & Publications - “Diffusion Ruby” Proves to be Synthetic Ruby Overgrowth on Natural Corundum A unique characteristic noted with immersion and transmitted light in all the samples was an image that resembled a series of steep mountainside contours. Magnified 15x. Photomicrograph by C.P. Smith. https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599763355643-3MYRC31BLFT3AELSV82H/image-asset.jpeg Research & Publications - “Diffusion Ruby” Proves to be Synthetic Ruby Overgrowth on Natural Corundum https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599763338644-6FQSUN8EOTBF3OVDYCV6/%E2%80%9CDiffusion-Ruby%E2%80%9D-Proves-to-be-Synthetic-Ruby-Overgrowth-on-Natural-Corundum_Page_4.jpg Research & Publications - “Diffusion Ruby” Proves to be Synthetic Ruby Overgrowth on Natural Corundum https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599763370762-K7AKT9EYZ88J4XAQ3XP5/%E2%80%9CDiffusion-Ruby%E2%80%9D-Proves-to-be-Synthetic-Ruby-Overgrowth-on-Natural-Corundum_Page_6.jpg Research & Publications - “Diffusion Ruby” Proves to be Synthetic Ruby Overgrowth on Natural Corundum https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599852572873-JGUYXIGW93E9G32JWLY8/%25E2%2580%259CDiffusion-Ruby%25E2%2580%259D-Proves-to-be-Synthetic-Ruby-Overgrowth-on-Natural-Corundum_Page_9.jpg Research & Publications - “Diffusion Ruby” Proves to be Synthetic Ruby Overgrowth on Natural Corundum https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599763318904-9BN5ADIUQ1ICOZ9DC55O/%E2%80%9CDiffusion-Ruby%E2%80%9D-Proves-to-be-Synthetic-Ruby-Overgrowth-on-Natural-Corundum_Page_3.jpg Research & Publications - “Diffusion Ruby” Proves to be Synthetic Ruby Overgrowth on Natural Corundum https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599763406527-S419M3OIVZABKOY49F96/%E2%80%9CDiffusion-Ruby%E2%80%9D-Proves-to-be-Synthetic-Ruby-Overgrowth-on-Natural-Corundum_Page_8.jpg Research & Publications - “Diffusion Ruby” Proves to be Synthetic Ruby Overgrowth on Natural Corundum https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599763304864-UNDPUXFGT9E2YBB21HIJ/image-asset.jpeg Research & Publications - “Diffusion Ruby” Proves to be Synthetic Ruby Overgrowth on Natural Corundum https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599763385571-9C9VLYPXPMOKORHIZKDD/%E2%80%9CDiffusion-Ruby%E2%80%9D-Proves-to-be-Synthetic-Ruby-Overgrowth-on-Natural-Corundum_Page_7.jpg Research & Publications - “Diffusion Ruby” Proves to be Synthetic Ruby Overgrowth on Natural Corundum https://www.aglresearch.com/research-publications/hpht-annealed-diamonds monthly 0.5 2020-05-29 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590781169113-2LVN7BNHI73D1H1UWKXR/HPHT-YG01.jpg Research & Publications - Color Modification in HPHT-Annealed Diamonds A broad range of colors is possible when exposing type ia brown diamonds to HPHT conditions. Depending on the reactions taking place internally, colors can be produced from deeply saturated orange to brownish-orange or brown-orange through pure yellow to slightly orange yellow, as well as greenish-yellow to yellowish-green. Photomicrograph by Christopher P. Smith, 10x. https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590690998319-V2SW8SXV6WH14OS6E8PR/RP_Vol25_No17_colored_modification_diamonds-3.jpg Research & Publications - Color Modification in HPHT-Annealed Diamonds https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590690796287-UTM7HU7BNUJU4XT3F6SI/RP_Vol25_No17_colored_modification_diamonds-1.jpg Research & Publications - Color Modification in HPHT-Annealed Diamonds https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590691028363-6EDOCMO6Q1S27VTHQJVX/RP_Vol25_No17_colored_modification_diamonds-4.jpg Research & Publications - Color Modification in HPHT-Annealed Diamonds https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590690970398-FPCO4XSNSZU6DCTLHCFW/RP_Vol25_No17_colored_modification_diamonds-2.jpg Research & Publications - Color Modification in HPHT-Annealed Diamonds https://www.aglresearch.com/research-publications/128ct-diamond monthly 0.5 2020-08-28 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598628077646-FDENNL3O1RLQWU3TOK7K/GG_Spring+2002_Star+of+the+south+A+Historic+128ct+Diamond_CPS-1.jpg Research & Publications - Star of the South: A Historic 128 ct Diamond https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598628125652-AVYQHL6513IJ4UVCFNQR/GG_Spring+2002_Star+of+the+south+A+Historic+128ct+Diamond_CPS-3.jpg Research & Publications - Star of the South: A Historic 128 ct Diamond https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598628167898-8H7NC6TTXB1QEEYJTW1X/GG_Spring+2002_Star+of+the+south+A+Historic+128ct+Diamond_CPS-5.jpg Research & Publications - Star of the South: A Historic 128 ct Diamond https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598628275980-BAKURNIBTTYQI3Q3VBYR/GG_Spring+2002_Star+of+the+south+A+Historic+128ct+Diamond_CPS-11.jpg Research & Publications - Star of the South: A Historic 128 ct Diamond https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598628146774-YBPPRBSJKQS3U012PLWO/GG_Spring+2002_Star+of+the+south+A+Historic+128ct+Diamond_CPS-4.jpg Research & Publications - Star of the South: A Historic 128 ct Diamond https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598628234224-OV488WG0HBZVEDAF62WJ/GG_Spring+2002_Star+of+the+south+A+Historic+128ct+Diamond_CPS-9.jpg Research & Publications - Star of the South: A Historic 128 ct Diamond https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598628185510-AZVU0F1M4B1MGJYRWGUV/GG_Spring+2002_Star+of+the+south+A+Historic+128ct+Diamond_CPS-6.jpg Research & Publications - Star of the South: A Historic 128 ct Diamond https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598628097104-357MX1ZYVR0O16VSUTRD/GG_Spring+2002_Star+of+the+south+A+Historic+128ct+Diamond_CPS-2.jpg Research & Publications - Star of the South: A Historic 128 ct Diamond https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598628257971-7X6CFVX02LBSYNZJWBBS/GG_Spring+2002_Star+of+the+south+A+Historic+128ct+Diamond_CPS-10.jpg Research & Publications - Star of the South: A Historic 128 ct Diamond https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598628202371-ALIMHF0JLOBTQUVVLKLO/GG_Spring+2002_Star+of+the+south+A+Historic+128ct+Diamond_CPS-7.jpg Research & Publications - Star of the South: A Historic 128 ct Diamond https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598628309130-VW7YMBJGPQ6AGCAZF44E/GG_Spring+2002_Star+of+the+south+A+Historic+128ct+Diamond_CPS-7.jpg Research & Publications - Star of the South: A Historic 128 ct Diamond Photo micrograph by Christopher P. Smith; magnified 7x. https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598628220585-LR6K51MPX2RDEWA6FOWX/GG_Spring+2002_Star+of+the+south+A+Historic+128ct+Diamond_CPS-8.jpg Research & Publications - Star of the South: A Historic 128 ct Diamond https://www.aglresearch.com/research-publications/ruby-and-sapphire-mining-at-barrington-tops-australia monthly 0.5 2020-08-28 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598625515233-V90ZNBBCY33WJJTCN6VU/GG_Fall+2001_Ruby+an+Sapphire+mining+at+Barrington+Tops%2C+Austrailia_CPS-2.jpg Research & Publications - Ruby and Sapphire Mining at Barrington Tops, Australia https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598625529149-H9ELJVZURX9ZNF4AMML6/GG_Fall+2001_Ruby+an+Sapphire+mining+at+Barrington+Tops%2C+Austrailia_CPS-3.jpg Research & Publications - Ruby and Sapphire Mining at Barrington Tops, Australia https://www.aglresearch.com/research-publications/nigerian-tourmalines monthly 0.5 2020-08-28 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598622989946-AD2SYD94L8SYJGCII83G/GG_Fall+2001_Nigeria+as+a+new+source+of+copper-manganese-bearing+tourmaline_CPS-3.jpg Research & Publications - Nigeria as a New Source of Copper-Manganese-Bearing Tourmaline https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598623079608-BQNJLW06E3VUVS8HF8ON/GG_Fall+2001_Nigeria+as+a+new+source+of+copper-manganese-bearing+tourmaline_CPS-3.jpg Research & Publications - Nigeria as a New Source of Copper-Manganese-Bearing Tourmaline Photo by Franzisca Imfeld. https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598622972960-E5H627VV3428MSYHERMI/GG_Fall+2001_Nigeria+as+a+new+source+of+copper-manganese-bearing+tourmaline_CPS-2.jpg Research & Publications - Nigeria as a New Source of Copper-Manganese-Bearing Tourmaline https://www.aglresearch.com/research-publications/anhydrite monthly 0.5 2020-08-28 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598622080233-4QOZBXQHTY7OI5KLLS7Q/GG_Fall+2001_Anhydrite+inclusion+in+a+ruby+from+Myanmar_CPS-2+copy.jpg Research & Publications - Anhydrite Inclusion in a Ruby from Myanmar Photomicrograph by Christopher P. Smith; magnified 50x. https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598624362693-IQFEA89GDDVW56FBDPAH/GG_Fall+2001_Anhydrite+inclusion+in+a+ruby+from+Myanmar_CPS-2+copy.jpg Research & Publications - Anhydrite Inclusion in a Ruby from Myanmar https://www.aglresearch.com/research-publications/natural-color-tanzanite-before-after monthly 0.5 2020-08-28 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598635336431-38FSYIZII79R0XB51PQ7/GRC+2001-Natural+Color+Tanzanite+Abstract-Figures-C+Smith+v2_Page_1.jpg Research & Publications - Natural-Color Tanzanite: Before & After https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598635382485-RBKXLBLU762ROXQYZ6N9/GRC+2001-Natural+Color+Tanzanite+Abstract-Figures-C+Smith+v2_Page_4.jpg Research & Publications - Natural-Color Tanzanite: Before & After https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598635396049-0E68II5HK9QQEQKOZ75E/GRC+2001-Natural+Color+Tanzanite+Abstract-Figures-C+Smith+v2_Page_5.jpg Research & Publications - Natural-Color Tanzanite: Before & After https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598635367029-8937H20BMOVWS6MC370C/GRC+2001-Natural+Color+Tanzanite+Abstract-Figures-C+Smith+v2_Page_3.jpg Research & Publications - Natural-Color Tanzanite: Before & After https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598635211044-EJN0RFWY615J55OUFKGE/GRC+2001-Natural+Color+Tanzanite+Abstract-Figures-C+Smith+v2_Page_2.jpg Research & Publications - Natural-Color Tanzanite: Before & After https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598635355635-AIDYA5GEGMJS1NII3JOP/GRC+2001-Natural+Color+Tanzanite+Abstract-Figures-C+Smith+v2_Page_2.jpg Research & Publications - Natural-Color Tanzanite: Before & After https://www.aglresearch.com/research-publications/ge-pol-diamonds monthly 0.5 2020-05-29 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590692562400-UHD87WAHFW80DA3TVYGA/GG_Vol36_Fall2000_GE_POL_Diamonds_Before_After_placeholder.jpg Research & Publications - GE POL Diamonds: Before and After As is typical for type iia diamonds, all of the samples studied showed tatami and banded extinction patterns with first-order interference colors when viewed between crossed polarizers. Photomicrograph by Christopher P. Smith. https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590692925670-RU75SRA8SSDKD73CHFOX/GG_Vol36_Fall2000_GE_POL_Diamonds_Before_After-1.jpg Research & Publications - GE POL Diamonds: Before and After https://www.aglresearch.com/research-publications/ruby-sapphire-afghanistan monthly 0.5 2020-08-28 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598633627768-0RFM52XPKJL8WEYCSZLM/GG_Summer+2000_Ruby+and+Sapphire+from+Jegdalek+Afghanistan_CPS_Page_02.jpg Research & Publications - Ruby and Sapphire from Jegdalek, Afghanistan https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598633611141-PFW1KU8BA8QSVQALP6F9/GG_Summer+2000_Ruby+and+Sapphire+from+Jegdalek+Afghanistan_CPS_Page_01.jpg Research & Publications - Ruby and Sapphire from Jegdalek, Afghanistan https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598633681996-1ZOXWADSEQVHDKUHGRI1/GG_Summer+2000_Ruby+and+Sapphire+from+Jegdalek+Afghanistan_CPS_Page_04.jpg Research & Publications - Ruby and Sapphire from Jegdalek, Afghanistan https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598633885636-7U1CLN161YHJIDP16DMX/GG_Summer+2000_Ruby+and+Sapphire+from+Jegdalek+Afghanistan_CPS_Page_12.jpg Research & Publications - Ruby and Sapphire from Jegdalek, Afghanistan https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598634177142-59CKFBAZ5MVDX7DQMYYA/GG_Summer+2000_Ruby+and+Sapphire+from+Jegdalek+Afghanistan_CPS_Page_10.jpg Research & Publications - Ruby and Sapphire from Jegdalek, Afghanistan Weak to moderate planar and angular sequences of internal growth structures were noted in a few of the rubies from Jegdalek. These typically consisted of combinations of the dipryamids z or n, as well as the positive rhombehedron r. In this sample, we see a combination of z growth planes. Photomicrograph by Christopher P. Smith; immersion, magnified 15x. https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598633800395-3EDFCWSTBVSFUDDRA9W6/GG_Summer+2000_Ruby+and+Sapphire+from+Jegdalek+Afghanistan_CPS_Page_10.jpg Research & Publications - Ruby and Sapphire from Jegdalek, Afghanistan https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598633663922-4VE09BT7DUHG7WA431BE/GG_Summer+2000_Ruby+and+Sapphire+from+Jegdalek+Afghanistan_CPS_Page_03.jpg Research & Publications - Ruby and Sapphire from Jegdalek, Afghanistan https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598633718279-UB8B7LRQGQQQE636LOUN/GG_Summer+2000_Ruby+and+Sapphire+from+Jegdalek+Afghanistan_CPS_Page_06.jpg Research & Publications - Ruby and Sapphire from Jegdalek, Afghanistan https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598633785437-72A4Q49FS3HGFVFBW2NM/GG_Summer+2000_Ruby+and+Sapphire+from+Jegdalek+Afghanistan_CPS_Page_09.jpg Research & Publications - Ruby and Sapphire from Jegdalek, Afghanistan https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598633736022-SABYYZV3DOUMB7ZF2HXR/GG_Summer+2000_Ruby+and+Sapphire+from+Jegdalek+Afghanistan_CPS_Page_07.jpg Research & Publications - Ruby and Sapphire from Jegdalek, Afghanistan https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598633757132-QPC7HRMVWH1S6VU0UTJK/GG_Summer+2000_Ruby+and+Sapphire+from+Jegdalek+Afghanistan_CPS_Page_08.jpg Research & Publications - Ruby and Sapphire from Jegdalek, Afghanistan https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598633911955-QS8IJ947Y3R9JL9BCEPD/GG_Summer+2000_Ruby+and+Sapphire+from+Jegdalek+Afghanistan_CPS_Page_14.jpg Research & Publications - Ruby and Sapphire from Jegdalek, Afghanistan https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598633897086-122DPBENG2T2P2WFCJUR/GG_Summer+2000_Ruby+and+Sapphire+from+Jegdalek+Afghanistan_CPS_Page_13.jpg Research & Publications - Ruby and Sapphire from Jegdalek, Afghanistan https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598633930060-90GU5YS7MSZ2DFGNSQVK/GG_Summer+2000_Ruby+and+Sapphire+from+Jegdalek+Afghanistan_CPS_Page_15.jpg Research & Publications - Ruby and Sapphire from Jegdalek, Afghanistan https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598633700407-O2300Q051HIZ3594A1EJ/GG_Summer+2000_Ruby+and+Sapphire+from+Jegdalek+Afghanistan_CPS_Page_05.jpg Research & Publications - Ruby and Sapphire from Jegdalek, Afghanistan https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598633819760-OFRKDKFXWRB6RWGL4LZO/GG_Summer+2000_Ruby+and+Sapphire+from+Jegdalek+Afghanistan_CPS_Page_11.jpg Research & Publications - Ruby and Sapphire from Jegdalek, Afghanistan https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598633945986-RU2XITL0X8E47QF06TLX/GG_Summer+2000_Ruby+and+Sapphire+from+Jegdalek+Afghanistan_CPS_Page_16.jpg Research & Publications - Ruby and Sapphire from Jegdalek, Afghanistan https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598633964330-Q5NP85CBVL13Q1L2PXCJ/GG_Summer+2000_Ruby+and+Sapphire+from+Jegdalek+Afghanistan_CPS_Page_17.jpg Research & Publications - Ruby and Sapphire from Jegdalek, Afghanistan https://www.aglresearch.com/research-publications/1990s-gem-treatments monthly 0.5 2020-08-27 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598557286106-AVG06Z5VBIW5V5RDYDGO/Gemstone+Enhancement+%26+Detection+in+the+1990%27s-Christopher+P.+Smith-2000-8.jpg Research & Publications - Gemstone Enhancement and Detection in the 1990s https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598557248682-KNBNVYS62KBCBMZOYDU9/Gemstone+Enhancement+%26+Detection+in+the+1990%27s-Christopher+P.+Smith-2000-6.jpg Research & Publications - Gemstone Enhancement and Detection in the 1990s https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598557018713-SBO992MG220MWY3AQ9ZJ/Gemstone+Enhancement+%26+Detection+in+the+1990%27s-Christopher+P.+Smith-2000-1.jpg Research & Publications - Gemstone Enhancement and Detection in the 1990s https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598557210179-D898JNXLFYP5KFQQ0KGZ/Gemstone+Enhancement+%26+Detection+in+the+1990%27s-Christopher+P.+Smith-2000-4.jpg Research & Publications - Gemstone Enhancement and Detection in the 1990s https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598557320667-7S3XM9G0IMR2DC2K964X/Gemstone+Enhancement+%26+Detection+in+the+1990%27s-Christopher+P.+Smith-2000-10.jpg Research & Publications - Gemstone Enhancement and Detection in the 1990s https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598557230879-719ODGIKQRENCUL7XB9Y/Gemstone+Enhancement+%26+Detection+in+the+1990%27s-Christopher+P.+Smith-2000-5.jpg Research & Publications - Gemstone Enhancement and Detection in the 1990s https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598557385258-N3PV6HB2N70OAEHAEL30/Gemstone+Enhancement+%26+Detection+in+the+1990%27s-Christopher+P.+Smith-2000-22.jpg Research & Publications - Gemstone Enhancement and Detection in the 1990s https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598557338651-5WT879OH7YEB3LKFTENW/Gemstone+Enhancement+%26+Detection+in+the+1990%27s-Christopher+P.+Smith-2000-11.jpg Research & Publications - Gemstone Enhancement and Detection in the 1990s https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598557353663-DE52AENVSFCA5UCZ8C9N/Gemstone+Enhancement+%26+Detection+in+the+1990%27s-Christopher+P.+Smith-2000-12.jpg Research & Publications - Gemstone Enhancement and Detection in the 1990s https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598557189399-K73Y73SN4O597F5006U9/Gemstone+Enhancement+%26+Detection+in+the+1990%27s-Christopher+P.+Smith-2000-3.jpg Research & Publications - Gemstone Enhancement and Detection in the 1990s https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598557421534-UY4C7J5PCSPB6S87EEWT/Gemstone+Enhancement+%26+Detection+in+the+1990%27s-Christopher+P.+Smith-2000-24.jpg Research & Publications - Gemstone Enhancement and Detection in the 1990s https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598557371218-4SP6FYO5FOQBXINSK0ZD/Gemstone+Enhancement+%26+Detection+in+the+1990%27s-Christopher+P.+Smith-2000-21.jpg Research & Publications - Gemstone Enhancement and Detection in the 1990s https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598557437640-ARJWXUGM0W0YZHKUBF6X/Gemstone+Enhancement+%26+Detection+in+the+1990%27s-Christopher+P.+Smith-2000-25.jpg Research & Publications - Gemstone Enhancement and Detection in the 1990s https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598557268015-5NK8DA68UQSCU4EHOW77/Gemstone+Enhancement+%26+Detection+in+the+1990%27s-Christopher+P.+Smith-2000-7.jpg Research & Publications - Gemstone Enhancement and Detection in the 1990s https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598557404736-QXPM1HP96H0UXCE7TER4/Gemstone+Enhancement+%26+Detection+in+the+1990%27s-Christopher+P.+Smith-2000-23.jpg Research & Publications - Gemstone Enhancement and Detection in the 1990s https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598557303600-9NR1UD1DKWT2T5OJ9M8J/Gemstone+Enhancement+%26+Detection+in+the+1990%27s-Christopher+P.+Smith-2000-9.jpg Research & Publications - Gemstone Enhancement and Detection in the 1990s https://www.aglresearch.com/research-publications/synthetic-blue-diamonds-hit-the-market monthly 0.5 2020-09-10 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599746414399-LWU5ESHMBP1AFXA2W27X/RAP_V22+No+20_Synthetic+Blue+Diamonds_CPS-1.jpg Research & Publications - Synthetic Blue Diamonds Hit the Market https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599746432886-8QFTN2XDI97W072DFAVJ/RAP_V22+No+20_Synthetic+Blue+Diamonds_CPS-2.jpg Research & Publications - Synthetic Blue Diamonds Hit the Market https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599746616664-ACVA5WJJVV7FK9RHEB25/RAP_V22+No+20_Synthetic+Blue+Diamonds_CPS-1.jpg Research & Publications - Synthetic Blue Diamonds Hit the Market Groups of tabular solid inclusions, remnants of the metallic solvent used as a catalyst for synthetic diamond growth, were readily apparent. Photomicrograph by C.P. Smith, magnified 50x. https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599746448131-V12SJ8ZL297ADPCQHNGG/RAP_V22+No+20_Synthetic+Blue+Diamonds_CPS-3.jpg Research & Publications - Synthetic Blue Diamonds Hit the Market https://www.aglresearch.com/research-publications/rubies-sapphires-pamir-mountains monthly 0.5 2020-09-04 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599227307212-5O48A4CUFSJ3E2MRS2PO/JoG_V26+No2_Rubies+%26+Pink+Sapphires+from+Pamir+Mountain+Range+in+Tajikistan%2C+former+USSR_CPS-7.jpg Research & Publications - Rubies and pink sapphires from the Pamir Mountain Range in Tajikistan, former USSR https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599227326747-TM96PSCEUXT28QP2M1YP/JoG_V26+No2_Rubies+%26+Pink+Sapphires+from+Pamir+Mountain+Range+in+Tajikistan%2C+former+USSR_CPS-8.jpg Research & Publications - Rubies and pink sapphires from the Pamir Mountain Range in Tajikistan, former USSR https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599227242299-QBQO31FJI094LWEZZ6LY/JoG_V26+No2_Rubies+%26+Pink+Sapphires+from+Pamir+Mountain+Range+in+Tajikistan%2C+former+USSR_CPS-4.jpg Research & Publications - Rubies and pink sapphires from the Pamir Mountain Range in Tajikistan, former USSR https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599227217934-0ZHBW7BU3HMSERB8X4TD/JoG_V26+No2_Rubies+%26+Pink+Sapphires+from+Pamir+Mountain+Range+in+Tajikistan%2C+former+USSR_CPS-3.jpg Research & Publications - Rubies and pink sapphires from the Pamir Mountain Range in Tajikistan, former USSR https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599227289640-DROGPUBIMK2HBL0DV2WT/JoG_V26+No2_Rubies+%26+Pink+Sapphires+from+Pamir+Mountain+Range+in+Tajikistan%2C+former+USSR_CPS-6.jpg Research & Publications - Rubies and pink sapphires from the Pamir Mountain Range in Tajikistan, former USSR https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599227201282-FB63GXW39AGQ6V6Y1AX3/JoG_V26+No2_Rubies+%26+Pink+Sapphires+from+Pamir+Mountain+Range+in+Tajikistan%2C+former+USSR_CPS-2.jpg Research & Publications - Rubies and pink sapphires from the Pamir Mountain Range in Tajikistan, former USSR https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599227494968-NQG89QS84TR4R98I31HH/JoG_V26+No2_Rubies+%26+Pink+Sapphires+from+Pamir+Mountain+Range+in+Tajikistan%2C+former+USSR_CPS-6.jpg Research & Publications - Rubies and pink sapphires from the Pamir Mountain Range in Tajikistan, former USSR Photomicrograph: Christopher P. Smith, 48x magnification https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599227183127-S26INTMXSVHYUNRY047Z/JoG_V26+No2_Rubies+%26+Pink+Sapphires+from+Pamir+Mountain+Range+in+Tajikistan%2C+former+USSR_CPS-1.jpg Research & Publications - Rubies and pink sapphires from the Pamir Mountain Range in Tajikistan, former USSR https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599227267816-SB6CJGQAQTKPIIBA5EJ5/JoG_V26+No2_Rubies+%26+Pink+Sapphires+from+Pamir+Mountain+Range+in+Tajikistan%2C+former+USSR_CPS-5.jpg Research & Publications - Rubies and pink sapphires from the Pamir Mountain Range in Tajikistan, former USSR https://www.aglresearch.com/research-publications/rubies-and-fancy-color-sapphires-from-nepal monthly 0.5 2020-08-28 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598626645973-XM9VHSIOEGEDLDSSWDU3/GG_Spring+1997_Rubies+and+Fancy-Color+Sapphires+from+Nepal_CPS-6.jpg Research & Publications - Rubies and Fancy-Color Sapphires from Nepal https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598626727369-QOLRKJ9FXZSTJ238X3R0/GG_Spring+1997_Rubies+and+Fancy-Color+Sapphires+from+Nepal_CPS-10.jpg Research & Publications - Rubies and Fancy-Color Sapphires from Nepal https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598626767085-Q1HDJGKT7QR1A40E220C/GG_Spring+1997_Rubies+and+Fancy-Color+Sapphires+from+Nepal_CPS-12.jpg Research & Publications - Rubies and Fancy-Color Sapphires from Nepal https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598626666965-8ZENK1SZGY4RN0H02063/GG_Spring+1997_Rubies+and+Fancy-Color+Sapphires+from+Nepal_CPS-7.jpg Research & Publications - Rubies and Fancy-Color Sapphires from Nepal https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598626862387-2GNUAMJFWM20DH7MXQC7/GG_Spring+1997_Rubies+and+Fancy-Color+Sapphires+from+Nepal_CPS-17.jpg Research & Publications - Rubies and Fancy-Color Sapphires from Nepal https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598626845587-BC7IJNBNU8E6U1B66YKJ/GG_Spring+1997_Rubies+and+Fancy-Color+Sapphires+from+Nepal_CPS-16.jpg Research & Publications - Rubies and Fancy-Color Sapphires from Nepal https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598626746933-RD8GPPTDDUSD4PFAE3OL/GG_Spring+1997_Rubies+and+Fancy-Color+Sapphires+from+Nepal_CPS-11.jpg Research & Publications - Rubies and Fancy-Color Sapphires from Nepal https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598626596445-R6Y9OVA053K5RBG4ZB0D/GG_Spring+1997_Rubies+and+Fancy-Color+Sapphires+from+Nepal_CPS-4.jpg Research & Publications - Rubies and Fancy-Color Sapphires from Nepal https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598626704447-R62X070O4OO63YWEFE6C/GG_Spring+1997_Rubies+and+Fancy-Color+Sapphires+from+Nepal_CPS-9.jpg Research & Publications - Rubies and Fancy-Color Sapphires from Nepal https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598626806376-4BTA9IS3LI4BCJLWLCCK/GG_Spring+1997_Rubies+and+Fancy-Color+Sapphires+from+Nepal_CPS-14.jpg Research & Publications - Rubies and Fancy-Color Sapphires from Nepal https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598626566560-4FY2GMT1WW73D4RIOQJ2/image-asset.jpeg Research & Publications - Rubies and Fancy-Color Sapphires from Nepal https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598626786108-YMM0MSD5446D85K9CZ10/GG_Spring+1997_Rubies+and+Fancy-Color+Sapphires+from+Nepal_CPS-13.jpg Research & Publications - Rubies and Fancy-Color Sapphires from Nepal https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598626883567-20UI7KWUO2TKG7IW3YGA/GG_Spring+1997_Rubies+and+Fancy-Color+Sapphires+from+Nepal_CPS-18.jpg Research & Publications - Rubies and Fancy-Color Sapphires from Nepal https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598626825048-0QUV3Q8VGATT4G0SX1VR/GG_Spring+1997_Rubies+and+Fancy-Color+Sapphires+from+Nepal_CPS-15.jpg Research & Publications - Rubies and Fancy-Color Sapphires from Nepal https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598626547793-GHCWNRD942FQI9LJMENQ/GG_Spring+1997_Rubies+and+Fancy-Color+Sapphires+from+Nepal_CPS-2.jpg Research & Publications - Rubies and Fancy-Color Sapphires from Nepal https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598626530932-GUMTPU8CZR8VGEMKKQY0/GG_Spring+1997_Rubies+and+Fancy-Color+Sapphires+from+Nepal_CPS-1.jpg Research & Publications - Rubies and Fancy-Color Sapphires from Nepal https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598626684632-UVXGLDEWFU111E86Z3TO/GG_Spring+1997_Rubies+and+Fancy-Color+Sapphires+from+Nepal_CPS-8.jpg Research & Publications - Rubies and Fancy-Color Sapphires from Nepal https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598626619362-CEXDDU8DBHTXSP1LVDZT/GG_Spring+1997_Rubies+and+Fancy-Color+Sapphires+from+Nepal_CPS-5.jpg Research & Publications - Rubies and Fancy-Color Sapphires from Nepal https://www.aglresearch.com/research-publications/internal-growth-structures monthly 0.5 2020-05-28 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590678694482-11ANQY1KQOC9KBVVL6PD/GG_+Fall1996_Analyzing+Internal+Growth+Structures-12.jpg Research & Publications - Introduction to Analyzing Internal Growth Structures https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590678460908-T8TYF07WZUAD1K5UT7BD/GG_+Fall1996_Analyzing+Internal+Growth+Structures-5.jpg Research & Publications - Introduction to Analyzing Internal Growth Structures https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590678759965-BVGWFD8XEQ6PACACZ188/GG_+Fall1996_Analyzing+Internal+Growth+Structures-15.jpg Research & Publications - Introduction to Analyzing Internal Growth Structures https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590678386479-0Z0TLYGO3I6EAR6PVKIA/GG_+Fall1996_Analyzing+Internal+Growth+Structures-2.jpg Research & Publications - Introduction to Analyzing Internal Growth Structures https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590678564506-GTUJSPPVV4D4XBRNOGWT/GG_+Fall1996_Analyzing+Internal+Growth+Structures-9.jpg Research & Publications - Introduction to Analyzing Internal Growth Structures https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590678738492-U1ZOXNQTYSDTTOFB0U45/GG_+Fall1996_Analyzing+Internal+Growth+Structures-14.jpg Research & Publications - Introduction to Analyzing Internal Growth Structures https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590678436384-P62YYNDT27CWT6Q96FWZ/GG_+Fall1996_Analyzing+Internal+Growth+Structures-4.jpg Research & Publications - Introduction to Analyzing Internal Growth Structures https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590678591645-5BYHXP1W5FG3RGQLE19Q/GG_+Fall1996_Analyzing+Internal+Growth+Structures-10.jpg Research & Publications - Introduction to Analyzing Internal Growth Structures https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590678411469-4L2P40WO72ER6OR240GW/GG_+Fall1996_Analyzing+Internal+Growth+Structures-3.jpg Research & Publications - Introduction to Analyzing Internal Growth Structures https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590678360870-CFWGTWKE86XTP55QMGU4/GG_+Fall1996_Analyzing+Internal+Growth+Structures-1.jpg Research & Publications - Introduction to Analyzing Internal Growth Structures https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590680250569-2XRTHYPM5CCXJXZ7UOWF/GG_+Fall1996_Analyzing+Internal+Growth+Structures-placeholder.jpg Research & Publications - Introduction to Analyzing Internal Growth Structures Photomicrograph by C.P. Smith; Immersion, magnified 15x. https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590678521744-DOEK6GMVI8VA5KEBLFSR/GG_+Fall1996_Analyzing+Internal+Growth+Structures-7.jpg Research & Publications - Introduction to Analyzing Internal Growth Structures https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590678495987-GI35NUTH6JA6Y0UI3GZ8/GG_+Fall1996_Analyzing+Internal+Growth+Structures-6.jpg Research & Publications - Introduction to Analyzing Internal Growth Structures https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590678541966-MZ3DDWPMFN7FYU7PAEHX/GG_+Fall1996_Analyzing+Internal+Growth+Structures-8.jpg Research & Publications - Introduction to Analyzing Internal Growth Structures https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590678716902-S1J7Q8GTIGTNHU3XDD47/GG_+Fall1996_Analyzing+Internal+Growth+Structures-13.jpg Research & Publications - Introduction to Analyzing Internal Growth Structures https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590678612064-NGP66IMFDCE1BAZBLPRY/GG_+Fall1996_Analyzing+Internal+Growth+Structures-11.jpg Research & Publications - Introduction to Analyzing Internal Growth Structures https://www.aglresearch.com/research-publications/sapphires-southern-vietnam monthly 0.5 2020-08-27 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598558374147-WP02NX6YANTK41T8SZW5/GG_Fall+1995_Sapphires+From+Southern+Vietnam_CPS-5.jpg Research & Publications - Sapphires From Southern Vietnam https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598558411776-82EVJ4K3GVJD7CUOY2LO/GG_Fall+1995_Sapphires+From+Southern+Vietnam_CPS-7.jpg Research & Publications - Sapphires From Southern Vietnam https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598558587348-2DX753RZYCE401PVXXMO/GG_Fall+1995_Sapphires+From+Southern+Vietnam_CPS-17.jpg Research & Publications - Sapphires From Southern Vietnam https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598558495961-RW7HYATPJFSVHQKWQMEB/GG_Fall+1995_Sapphires+From+Southern+Vietnam_CPS-12.jpg Research & Publications - Sapphires From Southern Vietnam https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598558638371-5CGZ02BX9IR3TZ3ZA3LQ/GG_Fall+1995_Sapphires+From+Southern+Vietnam_CPS-20.jpg Research & Publications - Sapphires From Southern Vietnam https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598558622437-EMJW1XG1IZBLS5QMLUL1/GG_Fall+1995_Sapphires+From+Southern+Vietnam_CPS-19.jpg Research & Publications - Sapphires From Southern Vietnam https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598558603164-1RQ2HVIRPYPR2S94TB44/image-asset.jpeg Research & Publications - Sapphires From Southern Vietnam https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598558391414-795IMPMY4OBIYNMR5RFV/GG_Fall+1995_Sapphires+From+Southern+Vietnam_CPS-6.jpg Research & Publications - Sapphires From Southern Vietnam https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598558548929-XP025H4OARLYMS7ZVJVV/GG_Fall+1995_Sapphires+From+Southern+Vietnam_CPS-15.jpg Research & Publications - Sapphires From Southern Vietnam https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598558477308-GAIW285RY032NDZPTJ1C/GG_Fall+1995_Sapphires+From+Southern+Vietnam_CPS-11.jpg Research & Publications - Sapphires From Southern Vietnam https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598558357641-58WC1B0SXI60OAY04GFZ/GG_Fall+1995_Sapphires+From+Southern+Vietnam_CPS-4.jpg Research & Publications - Sapphires From Southern Vietnam https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598558530899-72VBC1OSYJIOEWN7F444/GG_Fall+1995_Sapphires+From+Southern+Vietnam_CPS-14.jpg Research & Publications - Sapphires From Southern Vietnam https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598558317443-Y101RQR36A5VWBC704SG/GG_Fall+1995_Sapphires+From+Southern+Vietnam_CPS-1.jpg Research & Publications - Sapphires From Southern Vietnam https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598558336763-9D5T1L9JLZQ50WY10075/GG_Fall+1995_Sapphires+From+Southern+Vietnam_CPS-3.jpg Research & Publications - Sapphires From Southern Vietnam https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598558446890-DEJWB148FG2HJ9RU2KL2/GG_Fall+1995_Sapphires+From+Southern+Vietnam_CPS-9.jpg Research & Publications - Sapphires From Southern Vietnam https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598558429687-FBNVEE7Z9TDU5D1CKKWB/GG_Fall+1995_Sapphires+From+Southern+Vietnam_CPS-8.jpg Research & Publications - Sapphires From Southern Vietnam https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598558567336-FNIXO46JZU2TBG32X2AN/GG_Fall+1995_Sapphires+From+Southern+Vietnam_CPS-16.jpg Research & Publications - Sapphires From Southern Vietnam https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598558515085-HH6O72DJJUMTELR0I034/image-asset.jpeg Research & Publications - Sapphires From Southern Vietnam https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598558461789-XQ7JSY24H066OT96SCEZ/GG_Fall+1995_Sapphires+From+Southern+Vietnam_CPS-10.jpg Research & Publications - Sapphires From Southern Vietnam https://www.aglresearch.com/research-publications/a-contribution-to-understanding-the-infrared-spectra-of-rubies-from-mong-hsu-myanmar monthly 0.5 2021-02-19 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598644957619-RTEUTQUEVK3WUGIQ23IR/JoG_V24+N5_Infrared+Spectra+of+Rubies+from+Mong+Hsu%2C+Myanmar_CPS-13.jpg Research & Publications - A Contribution to Understanding the Infrared Spectra of Rubies from Mong Hsu, Myanmar https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598644858547-ER3P5WD32T2HHX03GXWW/JoG_V24+N5_Infrared+Spectra+of+Rubies+from+Mong+Hsu%2C+Myanmar_CPS-7.jpg Research & Publications - A Contribution to Understanding the Infrared Spectra of Rubies from Mong Hsu, Myanmar https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598644784515-LL8IDWE1K4SYH31WA3Z9/JoG_V24+N5_Infrared+Spectra+of+Rubies+from+Mong+Hsu%2C+Myanmar_CPS-2.jpg Research & Publications - A Contribution to Understanding the Infrared Spectra of Rubies from Mong Hsu, Myanmar https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598644929008-C49WNAA9W1S2I88AE3RT/JoG_V24+N5_Infrared+Spectra+of+Rubies+from+Mong+Hsu%2C+Myanmar_CPS-11.jpg Research & Publications - A Contribution to Understanding the Infrared Spectra of Rubies from Mong Hsu, Myanmar https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598644830511-UBD4SU1VNLNPIWQVGRYH/JoG_V24+N5_Infrared+Spectra+of+Rubies+from+Mong+Hsu%2C+Myanmar_CPS-5.jpg Research & Publications - A Contribution to Understanding the Infrared Spectra of Rubies from Mong Hsu, Myanmar https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598644970810-0T8F6G4T3YJO190JQFXA/JoG_V24+N5_Infrared+Spectra+of+Rubies+from+Mong+Hsu%2C+Myanmar_CPS-14.jpg Research & Publications - A Contribution to Understanding the Infrared Spectra of Rubies from Mong Hsu, Myanmar https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598644797834-KVNS0VNL3X1TU5WGY847/JoG_V24+N5_Infrared+Spectra+of+Rubies+from+Mong+Hsu%2C+Myanmar_CPS-3.jpg Research & Publications - A Contribution to Understanding the Infrared Spectra of Rubies from Mong Hsu, Myanmar https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598644944122-5RNDOJ3X6F1KIDOJNWAK/JoG_V24+N5_Infrared+Spectra+of+Rubies+from+Mong+Hsu%2C+Myanmar_CPS-12.jpg Research & Publications - A Contribution to Understanding the Infrared Spectra of Rubies from Mong Hsu, Myanmar https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598644768980-PZD3LN1MLOISBEGTCCXC/JoG_V24+N5_Infrared+Spectra+of+Rubies+from+Mong+Hsu%2C+Myanmar_CPS-1.jpg Research & Publications - A Contribution to Understanding the Infrared Spectra of Rubies from Mong Hsu, Myanmar https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598644846656-W6YIU132QJZF4O8XM31N/JoG_V24+N5_Infrared+Spectra+of+Rubies+from+Mong+Hsu%2C+Myanmar_CPS-6.jpg Research & Publications - A Contribution to Understanding the Infrared Spectra of Rubies from Mong Hsu, Myanmar https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598644812925-7WQ6X0BYU4HGPQO8HXRG/JoG_V24+N5_Infrared+Spectra+of+Rubies+from+Mong+Hsu%2C+Myanmar_CPS-4.jpg Research & Publications - A Contribution to Understanding the Infrared Spectra of Rubies from Mong Hsu, Myanmar https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598644875590-6BYMYXD9AZ7O2N2MJR3D/JoG_V24+N5_Infrared+Spectra+of+Rubies+from+Mong+Hsu%2C+Myanmar_CPS-8.jpg Research & Publications - A Contribution to Understanding the Infrared Spectra of Rubies from Mong Hsu, Myanmar https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598644890891-0PYFH980UI21P0BT875O/JoG_V24+N5_Infrared+Spectra+of+Rubies+from+Mong+Hsu%2C+Myanmar_CPS-9.jpg Research & Publications - A Contribution to Understanding the Infrared Spectra of Rubies from Mong Hsu, Myanmar https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598644909443-X3OT9B77BW5RN7WYSML2/JoG_V24+N5_Infrared+Spectra+of+Rubies+from+Mong+Hsu%2C+Myanmar_CPS-10.jpg Research & Publications - A Contribution to Understanding the Infrared Spectra of Rubies from Mong Hsu, Myanmar https://www.aglresearch.com/research-publications/ramaura-rubies monthly 0.5 2021-02-19 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599226351460-3O58ZAVUW2AHT6ZVGS2V/JoG_V24+No2_Twinning+in+Ramaura+synthetic+rubies_CPS-6.jpg Research & Publications - Twinning in Ramaura Synthetic Rubies https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599226371085-INQ49RTDZ209Z13B5Y1N/JoG_V24+No2_Twinning+in+Ramaura+synthetic+rubies_CPS-7.jpg Research & Publications - Twinning in Ramaura Synthetic Rubies https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599226255302-BNVXAJT6JBT28OODYKK6/JoG_V24+No2_Twinning+in+Ramaura+synthetic+rubies_CPS-2.jpg Research & Publications - Twinning in Ramaura Synthetic Rubies https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599226275306-GCNS2WHVSAHMM0FGVMBW/JoG_V24+No2_Twinning+in+Ramaura+synthetic+rubies_CPS-3.jpg Research & Publications - Twinning in Ramaura Synthetic Rubies https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599226305002-3JT1JWY6B3RUHGB1GXR3/JoG_V24+No2_Twinning+in+Ramaura+synthetic+rubies_CPS-4.jpg Research & Publications - Twinning in Ramaura Synthetic Rubies https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599226330139-8JM1PP53L03W1K8J9E7P/JoG_V24+No2_Twinning+in+Ramaura+synthetic+rubies_CPS-5.jpg Research & Publications - Twinning in Ramaura Synthetic Rubies https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1599226234453-DP9GLDO0F6DUTN9WBXY3/JoG_V24+No2_Twinning+in+Ramaura+synthetic+rubies_CPS-1.jpg Research & Publications - Twinning in Ramaura Synthetic Rubies https://www.aglresearch.com/research-publications/synthetic-rubies-australia monthly 0.5 2021-02-19 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598643261217-88LYWF5IBCGY93KPMF6E/Jo+Gem+Assoc+Australia_V18+No5_Sythetic+Hydrothermal+Rubies_CPS-8.jpg Research & Publications - A New Type of Synthetic Ruby on Market: Offered as Hydrothermal Rubies from Novosibirsk https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598643214330-D6XCW4IFG8DUOSON1QJ4/Jo+Gem+Assoc+Australia_V18+No5_Sythetic+Hydrothermal+Rubies_CPS-5.jpg Research & Publications - A New Type of Synthetic Ruby on Market: Offered as Hydrothermal Rubies from Novosibirsk https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598643181329-PSBX1OVLJCQ5XEBWU0LC/Jo+Gem+Assoc+Australia_V18+No5_Sythetic+Hydrothermal+Rubies_CPS-3.jpg Research & Publications - A New Type of Synthetic Ruby on Market: Offered as Hydrothermal Rubies from Novosibirsk https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598643146110-W4CGOS0EP83FJ5PVUPGE/image-asset.jpeg Research & Publications - A New Type of Synthetic Ruby on Market: Offered as Hydrothermal Rubies from Novosibirsk https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598643197417-CINS8FO5YO725EXVDNI9/Jo+Gem+Assoc+Australia_V18+No5_Sythetic+Hydrothermal+Rubies_CPS-4.jpg Research & Publications - A New Type of Synthetic Ruby on Market: Offered as Hydrothermal Rubies from Novosibirsk https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598643228206-D5EACGAP3YW19C1NAYJ6/Jo+Gem+Assoc+Australia_V18+No5_Sythetic+Hydrothermal+Rubies_CPS-6.jpg Research & Publications - A New Type of Synthetic Ruby on Market: Offered as Hydrothermal Rubies from Novosibirsk https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598643246316-Y2RTBDOUQG5WVXBLAWWR/image-asset.jpeg Research & Publications - A New Type of Synthetic Ruby on Market: Offered as Hydrothermal Rubies from Novosibirsk https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598643278703-UG6QZTWXH1W0P8VO8JNO/Jo+Gem+Assoc+Australia_V18+No5_Sythetic+Hydrothermal+Rubies_CPS-9.jpg Research & Publications - A New Type of Synthetic Ruby on Market: Offered as Hydrothermal Rubies from Novosibirsk https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1598643130959-6RO9F77PFKJ7Z9G3EK5Q/Jo+Gem+Assoc+Australia_V18+No5_Sythetic+Hydrothermal+Rubies_CPS-1.jpg Research & Publications - A New Type of Synthetic Ruby on Market: Offered as Hydrothermal Rubies from Novosibirsk https://www.aglresearch.com/research-publications/emerald-gold-treasures monthly 0.5 2021-02-19 https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590697961864-JD72BSGQH6JKSK0X2C6W/GG_Winter1989_Emerald_Gold_Treasures-10.jpg Research & Publications - Emerald and Gold Treasures of the Spanish Galleon Nuestra Señora de Atocha https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590697938526-KXB27V6U1UHQT9I6JSXM/GG_Winter1989_Emerald_Gold_Treasures-9.jpg Research & Publications - Emerald and Gold Treasures of the Spanish Galleon Nuestra Señora de Atocha https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590697868277-VGTUSYEHX8EP6TNRZGFM/GG_Winter1989_Emerald_Gold_Treasures-6.jpg Research & Publications - Emerald and Gold Treasures of the Spanish Galleon Nuestra Señora de Atocha https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590697823146-3ZZ5C3M171CDWS771Y35/GG_Winter1989_Emerald_Gold_Treasures-4.jpg Research & Publications - Emerald and Gold Treasures of the Spanish Galleon Nuestra Señora de Atocha https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590697983839-ST5N1BTI3GAOLYSEAD6I/GG_Winter1989_Emerald_Gold_Treasures-11.jpg Research & Publications - Emerald and Gold Treasures of the Spanish Galleon Nuestra Señora de Atocha https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590697846788-HKZLWQG8JVNHNDH4FWEW/GG_Winter1989_Emerald_Gold_Treasures-5.jpg Research & Publications - Emerald and Gold Treasures of the Spanish Galleon Nuestra Señora de Atocha https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590697896625-7PF3OB8C4FOBZJ7JRIIX/GG_Winter1989_Emerald_Gold_Treasures-7.jpg Research & Publications - Emerald and Gold Treasures of the Spanish Galleon Nuestra Señora de Atocha https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590779626639-7F3SUEBH02V7632DFAS6/GG_Winter1989_Emerald_Gold_Treasures.jpg Research & Publications - Emerald and Gold Treasures of the Spanish Galleon Nuestra Señora de Atocha Photo by AGL https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590698003297-Y2ER49S9NPWVT612V1VO/GG_+Fall1996_Analyzing+Internal+Growth+Structures-11.jpg Research & Publications - Emerald and Gold Treasures of the Spanish Galleon Nuestra Señora de Atocha https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590697799071-8FN4TVUKA97D2VVA4Z4L/GG_Winter1989_Emerald_Gold_Treasures-2.jpg Research & Publications - Emerald and Gold Treasures of the Spanish Galleon Nuestra Señora de Atocha https://images.squarespace-cdn.com/content/v1/5eb840daa2c9a8275e63081e/1590697916754-S7P1YJV1DMLY8JCPNDWO/GG_Winter1989_Emerald_Gold_Treasures-8.jpg Research & Publications - Emerald and Gold Treasures of the Spanish Galleon Nuestra Señora de Atocha https://www.aglresearch.com/research-publications/category/Adularia monthly 0.5 https://www.aglresearch.com/research-publications/category/Fluorite monthly 0.5 https://www.aglresearch.com/research-publications/category/Rapaport monthly 0.5 https://www.aglresearch.com/research-publications/category/Kyanite monthly 0.5 https://www.aglresearch.com/research-publications/category/Somalia monthly 0.5 https://www.aglresearch.com/research-publications/category/Press+Release monthly 0.5 https://www.aglresearch.com/research-publications/category/Canadian+Gemmologist monthly 0.5 https://www.aglresearch.com/research-publications/category/Garnet monthly 0.5 https://www.aglresearch.com/research-publications/category/Chondrodite monthly 0.5 https://www.aglresearch.com/research-publications/category/Vietnam monthly 0.5 https://www.aglresearch.com/research-publications/category/Austria monthly 0.5 https://www.aglresearch.com/research-publications/category/Pakistan monthly 0.5 https://www.aglresearch.com/research-publications/category/Mozambique monthly 0.5 https://www.aglresearch.com/research-publications/category/Aquamarine monthly 0.5 https://www.aglresearch.com/research-publications/category/Heat+Treatment monthly 0.5 https://www.aglresearch.com/research-publications/category/Sapphire monthly 0.5 https://www.aglresearch.com/research-publications/category/InColor+Magazine monthly 0.5 https://www.aglresearch.com/research-publications/category/Spessartine monthly 0.5 https://www.aglresearch.com/research-publications/category/Brazil monthly 0.5 https://www.aglresearch.com/research-publications/category/World+of+Gems+Conference monthly 0.5 https://www.aglresearch.com/research-publications/category/AGA monthly 0.5 https://www.aglresearch.com/research-publications/category/Ruby monthly 0.5 https://www.aglresearch.com/research-publications/category/Journal+of+Gemmology monthly 0.5 https://www.aglresearch.com/research-publications/category/Gems+%26+Gemology monthly 0.5 https://www.aglresearch.com/research-publications/category/powerpoint monthly 0.5 https://www.aglresearch.com/research-publications/category/Sri+Lanka monthly 0.5 https://www.aglresearch.com/research-publications/category/Jewelry+News+Asia monthly 0.5 https://www.aglresearch.com/research-publications/category/Tanzania monthly 0.5 https://www.aglresearch.com/research-publications/category/Africa monthly 0.5 https://www.aglresearch.com/research-publications/category/Gems+%26+Jewellery monthly 0.5 https://www.aglresearch.com/research-publications/category/Axinite monthly 0.5 https://www.aglresearch.com/research-publications/category/Cat%27s+Eye monthly 0.5 https://www.aglresearch.com/research-publications/category/Kenya monthly 0.5 https://www.aglresearch.com/research-publications/category/Quartz monthly 0.5 https://www.aglresearch.com/research-publications/category/WJA+News+San+Diego monthly 0.5 https://www.aglresearch.com/research-publications/category/Scapolite monthly 0.5 https://www.aglresearch.com/research-publications/category/Hessonite monthly 0.5 https://www.aglresearch.com/research-publications/category/Corundum monthly 0.5 https://www.aglresearch.com/research-publications/category/Turkey monthly 0.5 https://www.aglresearch.com/research-publications/category/DRC monthly 0.5 https://www.aglresearch.com/research-publications/category/Spinel monthly 0.5 https://www.aglresearch.com/research-publications/category/The+Australian+Gemmologist monthly 0.5 https://www.aglresearch.com/research-publications/category/Apatite monthly 0.5 https://www.aglresearch.com/research-publications/category/GRC monthly 0.5 https://www.aglresearch.com/research-publications/category/Tourmaline monthly 0.5 https://www.aglresearch.com/research-publications/category/Tajikistan monthly 0.5 https://www.aglresearch.com/research-publications/category/Journal+of+the+Gemmological+Association+of+Australia monthly 0.5 https://www.aglresearch.com/research-publications/tag/asterism monthly 0.5 https://www.aglresearch.com/research-publications/tag/scapolite monthly 0.5 https://www.aglresearch.com/research-publications/tag/adularia monthly 0.5 https://www.aglresearch.com/research-publications/tag/structural+OH+groups monthly 0.5 https://www.aglresearch.com/research-publications/tag/Kyanite monthly 0.5 https://www.aglresearch.com/research-publications/tag/gemology monthly 0.5 https://www.aglresearch.com/research-publications/tag/chromium-diffused monthly 0.5 https://www.aglresearch.com/research-publications/tag/tourmaline monthly 0.5 https://www.aglresearch.com/research-publications/tag/lead+glass monthly 0.5 https://www.aglresearch.com/research-publications/tag/brookite monthly 0.5 https://www.aglresearch.com/research-publications/tag/orangy+yellow monthly 0.5 https://www.aglresearch.com/research-publications/tag/treatments monthly 0.5 https://www.aglresearch.com/research-publications/tag/tanzanite monthly 0.5 https://www.aglresearch.com/research-publications/tag/unheated+corundum monthly 0.5 https://www.aglresearch.com/research-publications/tag/yellowish+green monthly 0.5 https://www.aglresearch.com/research-publications/tag/composite monthly 0.5 https://www.aglresearch.com/research-publications/tag/fluorite monthly 0.5 https://www.aglresearch.com/research-publications/tag/diaspore monthly 0.5 https://www.aglresearch.com/research-publications/tag/chromite monthly 0.5 https://www.aglresearch.com/research-publications/tag/blue-yellow monthly 0.5 https://www.aglresearch.com/research-publications/tag/chalcedony monthly 0.5 https://www.aglresearch.com/research-publications/tag/greenish+blue monthly 0.5 https://www.aglresearch.com/research-publications/tag/sapphire monthly 0.5 https://www.aglresearch.com/research-publications/tag/sapphires monthly 0.5 https://www.aglresearch.com/research-publications/tag/africa monthly 0.5 https://www.aglresearch.com/research-publications/tag/ceylon monthly 0.5 https://www.aglresearch.com/research-publications/tag/chondrodite monthly 0.5 https://www.aglresearch.com/research-publications/tag/violet monthly 0.5 https://www.aglresearch.com/research-publications/tag/vietnam monthly 0.5 https://www.aglresearch.com/research-publications/tag/australia monthly 0.5 https://www.aglresearch.com/research-publications/tag/anatase monthly 0.5 https://www.aglresearch.com/research-publications/tag/composite+sapphire monthly 0.5 https://www.aglresearch.com/research-publications/tag/Turkey monthly 0.5 https://www.aglresearch.com/research-publications/tag/hydrothermal+synthetic monthly 0.5 https://www.aglresearch.com/research-publications/tag/austria monthly 0.5 https://www.aglresearch.com/research-publications/tag/inclusions monthly 0.5 https://www.aglresearch.com/research-publications/tag/treatment monthly 0.5 https://www.aglresearch.com/research-publications/tag/pink monthly 0.5 https://www.aglresearch.com/research-publications/tag/diffusion monthly 0.5 https://www.aglresearch.com/research-publications/tag/yellow monthly 0.5 https://www.aglresearch.com/research-publications/tag/cobalt monthly 0.5 https://www.aglresearch.com/research-publications/tag/kenya monthly 0.5 https://www.aglresearch.com/research-publications/tag/bi-color monthly 0.5 https://www.aglresearch.com/research-publications/tag/apatite monthly 0.5 https://www.aglresearch.com/research-publications/tag/greenland monthly 0.5 https://www.aglresearch.com/research-publications/tag/gold monthly 0.5 https://www.aglresearch.com/research-publications/tag/zircon monthly 0.5 https://www.aglresearch.com/research-publications/tag/gray monthly 0.5 https://www.aglresearch.com/research-publications/tag/danburite monthly 0.5 https://www.aglresearch.com/research-publications/tag/red-brown monthly 0.5 https://www.aglresearch.com/research-publications/tag/copper monthly 0.5 https://www.aglresearch.com/research-publications/tag/r-line monthly 0.5 https://www.aglresearch.com/research-publications/tag/coated+tanzanite monthly 0.5 https://www.aglresearch.com/research-publications/tag/Nigeria monthly 0.5 https://www.aglresearch.com/research-publications/tag/rough+gems monthly 0.5 https://www.aglresearch.com/research-publications/tag/rutile monthly 0.5 https://www.aglresearch.com/research-publications/tag/colombia monthly 0.5 https://www.aglresearch.com/research-publications/tag/CGE monthly 0.5 https://www.aglresearch.com/research-publications/tag/magnetite monthly 0.5 https://www.aglresearch.com/research-publications/tag/colorless monthly 0.5 https://www.aglresearch.com/research-publications/tag/unstable+color monthly 0.5 https://www.aglresearch.com/research-publications/tag/buddha+blue monthly 0.5 https://www.aglresearch.com/research-publications/tag/emeralds monthly 0.5 https://www.aglresearch.com/research-publications/tag/Sri+Lanka monthly 0.5 https://www.aglresearch.com/research-publications/tag/overgrowth monthly 0.5 https://www.aglresearch.com/research-publications/tag/anhydrite monthly 0.5 https://www.aglresearch.com/research-publications/tag/heat+treatment monthly 0.5 https://www.aglresearch.com/research-publications/tag/American+Gemological+Laboratories monthly 0.5 https://www.aglresearch.com/research-publications/tag/synthetic+ruby monthly 0.5 https://www.aglresearch.com/research-publications/tag/blue monthly 0.5 https://www.aglresearch.com/research-publications/tag/cat%27s-eye monthly 0.5 https://www.aglresearch.com/research-publications/tag/beryl monthly 0.5 https://www.aglresearch.com/research-publications/tag/purple monthly 0.5 https://www.aglresearch.com/research-publications/tag/cabochon monthly 0.5 https://www.aglresearch.com/research-publications/tag/Tajikistan monthly 0.5 https://www.aglresearch.com/research-publications/tag/diamonds monthly 0.5 https://www.aglresearch.com/research-publications/tag/Myanmar monthly 0.5 https://www.aglresearch.com/research-publications/tag/chrysocolla monthly 0.5 https://www.aglresearch.com/research-publications/tag/axinite monthly 0.5 https://www.aglresearch.com/research-publications/tag/Paraiba monthly 0.5 https://www.aglresearch.com/research-publications/tag/colored+gemstones monthly 0.5 https://www.aglresearch.com/research-publications/tag/gemstones monthly 0.5 https://www.aglresearch.com/research-publications/tag/mounted+item monthly 0.5 https://www.aglresearch.com/research-publications/tag/Shigar+Fort monthly 0.5 https://www.aglresearch.com/research-publications/tag/pakistan monthly 0.5 https://www.aglresearch.com/research-publications/tag/gem+silica monthly 0.5 https://www.aglresearch.com/research-publications/tag/garnet monthly 0.5 https://www.aglresearch.com/research-publications/tag/ColorCodex monthly 0.5 https://www.aglresearch.com/research-publications/tag/pyrite monthly 0.5 https://www.aglresearch.com/research-publications/tag/yellow-orange monthly 0.5 https://www.aglresearch.com/research-publications/tag/somalia monthly 0.5 https://www.aglresearch.com/research-publications/tag/red monthly 0.5 https://www.aglresearch.com/research-publications/tag/yellowish+brown monthly 0.5 https://www.aglresearch.com/research-publications/tag/shipwreck monthly 0.5 https://www.aglresearch.com/research-publications/tag/pastel monthly 0.5 https://www.aglresearch.com/research-publications/tag/hydrogen-rich monthly 0.5 https://www.aglresearch.com/research-publications/tag/Mozambique monthly 0.5 https://www.aglresearch.com/research-publications/tag/eulytine monthly 0.5 https://www.aglresearch.com/research-publications/tag/natural-color monthly 0.5 https://www.aglresearch.com/research-publications/tag/argyle+mine monthly 0.5 https://www.aglresearch.com/research-publications/tag/Rubies monthly 0.5 https://www.aglresearch.com/research-publications/tag/buddha monthly 0.5 https://www.aglresearch.com/research-publications/tag/thailand monthly 0.5 https://www.aglresearch.com/research-publications/tag/rare monthly 0.5 https://www.aglresearch.com/research-publications/tag/Brazil monthly 0.5 https://www.aglresearch.com/research-publications/tag/light+yellow monthly 0.5 https://www.aglresearch.com/research-publications/tag/irradiated monthly 0.5 https://www.aglresearch.com/research-publications/tag/antique monthly 0.5 https://www.aglresearch.com/research-publications/tag/petroleum monthly 0.5 https://www.aglresearch.com/research-publications/tag/tanzania monthly 0.5 https://www.aglresearch.com/research-publications/tag/jewelry monthly 0.5 https://www.aglresearch.com/research-publications/tag/glass monthly 0.5 https://www.aglresearch.com/research-publications/tag/history monthly 0.5 https://www.aglresearch.com/research-publications/tag/tanga monthly 0.5 https://www.aglresearch.com/research-publications/tag/Tuscon monthly 0.5 https://www.aglresearch.com/research-publications/tag/brownish+orange monthly 0.5 https://www.aglresearch.com/research-publications/tag/synthetic monthly 0.5 https://www.aglresearch.com/research-publications/tag/laboratories monthly 0.5 https://www.aglresearch.com/research-publications/tag/Dr.+Edward+J.+Gueblin monthly 0.5 https://www.aglresearch.com/research-publications/tag/nepal monthly 0.5 https://www.aglresearch.com/research-publications/tag/ramaura monthly 0.5 https://www.aglresearch.com/research-publications/tag/chatoyancy monthly 0.5 https://www.aglresearch.com/research-publications/tag/emerald monthly 0.5 https://www.aglresearch.com/research-publications/tag/pink+sapphire monthly 0.5 https://www.aglresearch.com/research-publications/tag/jeremejevite monthly 0.5 https://www.aglresearch.com/research-publications/tag/colombian+emeralds monthly 0.5 https://www.aglresearch.com/research-publications/tag/hessonite monthly 0.5 https://www.aglresearch.com/research-publications/tag/aquamarine monthly 0.5 https://www.aglresearch.com/research-publications/tag/Himalayas monthly 0.5 https://www.aglresearch.com/research-publications/tag/origin monthly 0.5 https://www.aglresearch.com/research-publications/tag/burma monthly 0.5 https://www.aglresearch.com/research-publications/tag/sphene monthly 0.5 https://www.aglresearch.com/research-publications/tag/peru monthly 0.5 https://www.aglresearch.com/research-publications/tag/ancient+stones monthly 0.5 https://www.aglresearch.com/research-publications/tag/diffusion-induced+star monthly 0.5 https://www.aglresearch.com/research-publications/tag/spessartine monthly 0.5 https://www.aglresearch.com/research-publications/tag/Pakistan monthly 0.5 https://www.aglresearch.com/research-publications/tag/spectroscopy monthly 0.5 https://www.aglresearch.com/research-publications/tag/Mong-Hsu monthly 0.5 https://www.aglresearch.com/research-publications/tag/Ruby monthly 0.5 https://www.aglresearch.com/research-publications/tag/moonstone monthly 0.5 https://www.aglresearch.com/research-publications/tag/periclase monthly 0.5 https://www.aglresearch.com/research-publications/tag/twin monthly 0.5 https://www.aglresearch.com/research-publications/tag/rubies monthly 0.5 https://www.aglresearch.com/research-publications/tag/infrared+spectroscopy monthly 0.5 https://www.aglresearch.com/research-publications/tag/blue+diamonds monthly 0.5 https://www.aglresearch.com/research-publications/tag/twinning monthly 0.5 https://www.aglresearch.com/research-publications/tag/green monthly 0.5 https://www.aglresearch.com/research-publications/tag/photoluminescence monthly 0.5 https://www.aglresearch.com/research-publications/tag/AGL monthly 0.5 https://www.aglresearch.com/research-publications/tag/clear monthly 0.5 https://www.aglresearch.com/research-publications/tag/corundum monthly 0.5 https://www.aglresearch.com/research-publications/tag/quartz monthly 0.5 https://www.aglresearch.com/research-publications/tag/myanmar monthly 0.5 https://www.aglresearch.com/research-publications/tag/novosibirsk monthly 0.5 https://www.aglresearch.com/research-publications/tag/Burma monthly 0.5 https://www.aglresearch.com/research-publications/tag/vesuvianite monthly 0.5 https://www.aglresearch.com/research-publications/tag/Arzakite monthly 0.5 https://www.aglresearch.com/research-publications/tag/ruby monthly 0.5 https://www.aglresearch.com/research-publications/tag/orange monthly 0.5 https://www.aglresearch.com/research-publications/tag/Mogok monthly 0.5 https://www.aglresearch.com/research-publications/tag/spinel monthly 0.5 https://www.aglresearch.com/research-publications/tag/star+sapphire monthly 0.5 https://www.aglresearch.com/research-publications/tag/Corundum monthly 0.5 https://www.aglresearch.com/research-publications/tag/clarity monthly 0.5 https://www.aglresearch.com/research-publications/tag/Democratic+Republic+of+Congo monthly 0.5 https://www.aglresearch.com/research-publications/tag/crystal+structure monthly 0.5 https://www.aglresearch.com/research-publications/tag/songea monthly 0.5