0
Skip to Content
AGL Research & Publications
Research & Publications
AGL Home Page
AGL Research & Publications
Research & Publications
AGL Home Page
Research & Publications
AGL Home Page
Arzakite inclusion in Ruby from Mogok
InColor Magazine Precious Braswell 11/15/24 InColor Magazine Precious Braswell 11/15/24

Arzakite inclusion in Ruby from Mogok

Read More
Evolution of Gem-Testing Labs
InColor Magazine Precious Braswell 12/31/20 InColor Magazine Precious Braswell 12/31/20

Evolution of Gem-Testing Labs

Read More
Vesuvianite (Idocrase) and Apatite Inclusions in Ruby Identifiable by Infrared Spectroscopy
Journal of Gemmology Precious Braswell 12/31/20 Journal of Gemmology Precious Braswell 12/31/20

Vesuvianite (Idocrase) and Apatite Inclusions in Ruby Identifiable by Infrared Spectroscopy

Read More
An Unusual Synthetic Fancy Sapphire Colored by Co2+ and Co3+
Journal of Gemmology Precious Braswell 11/1/20 Journal of Gemmology Precious Braswell 11/1/20

An Unusual Synthetic Fancy Sapphire Colored by Co2+ and Co3+

Read More
ColorCodex™ - A New Tool for the Gemstone and Jewelry Industry
InColor Magazine Precious Braswell 1/1/20 InColor Magazine Precious Braswell 1/1/20

ColorCodex™ - A New Tool for the Gemstone and Jewelry Industry

Read More
Titanite (Sphene) Inclusions in Ruby Identified by Infrared Spectroscopy
Journal of Gemmology Precious Braswell 1/1/20 Journal of Gemmology Precious Braswell 1/1/20

Titanite (Sphene) Inclusions in Ruby Identified by Infrared Spectroscopy

Read More
Heated Sapphires With Unstable Color Centers
Journal of Gemmology Precious Braswell 12/1/19 Journal of Gemmology Precious Braswell 12/1/19

Heated Sapphires With Unstable Color Centers

Read More
Pyrite and Chromite Inclusion Assemblage in Emerald
Journal of Gemmology Precious Braswell 8/1/19 Journal of Gemmology Precious Braswell 8/1/19

Pyrite and Chromite Inclusion Assemblage in Emerald

Read More
Eulytine Inclusions in a Manufactured Glass: A Rare Encounter
Journal of Gemmology Precious Braswell 7/1/19 Journal of Gemmology Precious Braswell 7/1/19

Eulytine Inclusions in a Manufactured Glass: A Rare Encounter

Read More
Identifying Synthetic Periclase
Journal of Gemmology Precious Braswell 5/1/19 Journal of Gemmology Precious Braswell 5/1/19

Identifying Synthetic Periclase

Read More
ColorCodex™  Update
Journal of Gemmology Precious Braswell 5/1/19 Journal of Gemmology Precious Braswell 5/1/19

ColorCodex™ Update

Read More
Two Large Rubies from the Pamir Mountains, Tajikistan
Journal of Gemmology Precious Braswell 12/1/18 Journal of Gemmology Precious Braswell 12/1/18

Two Large Rubies from the Pamir Mountains, Tajikistan

Read More
Native Copper Inclusions in a Cu-bearing Tourmaline
Journal of Gemmology Precious Braswell 12/1/18 Journal of Gemmology Precious Braswell 12/1/18

Native Copper Inclusions in a Cu-bearing Tourmaline

Read More
Sri Lankan Sapphire with Spinel Inclusions
Journal of Gemmology Precious Braswell 4/1/18 Journal of Gemmology Precious Braswell 4/1/18

Sri Lankan Sapphire with Spinel Inclusions

Read More
Yellow Danburite from Namalulu, Tanzania: Gemmological Properties and Chemical Composition
Journal of Gemmology Precious Braswell 5/1/17 Journal of Gemmology Precious Braswell 5/1/17

Yellow Danburite from Namalulu, Tanzania: Gemmological Properties and Chemical Composition

Read More
Yellow Danburite from Namalulu, Tanzania, and Myanmar: Origin of Colour and Its Stability
Journal of Gemmology Precious Braswell 5/1/17 Journal of Gemmology Precious Braswell 5/1/17

Yellow Danburite from Namalulu, Tanzania, and Myanmar: Origin of Colour and Its Stability

Read More
The ColorCodex™ - An innovative approach for establishing the color of gemstones
Rapaport Precious Braswell 1/1/17 Rapaport Precious Braswell 1/1/17

The ColorCodex™ - An innovative approach for establishing the color of gemstones

Read More
Faceted Anatase from Pakistan
Journal of Gemmology Precious Braswell 12/1/16 Journal of Gemmology Precious Braswell 12/1/16

Faceted Anatase from Pakistan

Read More
Scapolite From Tanzania with Magnetite Inclusions
Journal of Gemmology Precious Braswell 12/1/16 Journal of Gemmology Precious Braswell 12/1/16

Scapolite From Tanzania with Magnetite Inclusions

Read More
Cat's-eye Diaspore from Turkey
Journal of Gemmology Precious Braswell 12/1/16 Journal of Gemmology Precious Braswell 12/1/16

Cat's-eye Diaspore from Turkey

Read More
Older Posts

©2025 American Gemological Laboratories