Fine Gems and Update from Myanmar
Ethical and Sustainable Vertical Integration in the Sapphire Market
The recession of 2008 transforms a gem business into a vertically integrated operation.
Emerald Dealing in Afghanistan
Cultured Pearl Market Update
Quarterly Crystal:Mystery in Topaz
A topaz hosting a group of inclusions is examined in the Carlsbad lab.
埃塞俄比亚蛋白石中的闪光和火焰 (英语)
Chatoyancy, rarely seen in play-of-color opal, is observed in Ethiopian material.
Ametrine Optical Dishes: Windows into the Effects of Crystal Structure
HPHT Synthetic Diamond Melee Without Si or Ni Defects
Quality assurance testing in the Bangkok lab reveals HPHT synthetic melee in larger sizes.
Pink Sapphire Filled with Bismuth-Based Glass
A sapphire with a color not commonly seen in the lab is found to have a glass filling.
Multi-Elemental Diffused and Melt-Grown Synthetic Sapphire
GIA examines a multi-elemental diffused and melt-grown synthetic sapphire for the first time.
Plastic Amber Imitation in a Rosary
An Inside Look at the 2017 Tucson Shows
An overview of the trends reported at the 2017 Tucson gem shows.
“Boldly Go” with a Southwest-Inspired Starship Enterprise
Golden Rutilated Quartz Artisanal Mining Community
Plans to develop a collective in a remote Brazilian rutilated quartz mining community are unveiled.
Jewelry Industry Summit
A report from the second Jewelry Industry Summit, held in Tucson, Arizona on January 29–30, 2017.
Tourmaline and Sapphire from Nigeria
An update on Nigerian colored stone production is obtained at the Tucson gem shows.
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