Precious Braswell 11/1/20 Precious Braswell 11/1/20

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

Precious Braswell 4/1/18 Precious Braswell 4/1/18

Sri Lankan Sapphire with Spinel Inclusions

Precious Braswell 3/1/16 Precious Braswell 3/1/16

Large Pink Sapphire with Diffusion-Induced Star

Precious Braswell 12/1/15 Precious Braswell 12/1/15

Chromium-diffused Corundum

Precious Braswell 12/1/15 Precious Braswell 12/1/15

Quartz Imitation of Star Sapphire

Precious Braswell 2/1/14 Precious Braswell 2/1/14

Sapphire with a Large Spessartine Inclusion from Songea, Tanzania

Precious Braswell 7/1/12 Precious Braswell 7/1/12

The Buddha Blue

Precious Braswell 12/1/08 Precious Braswell 12/1/08

Forensic Gemology: Geographic Origin Determinations