
Emerald Dealing in Afghanistan
An experienced gem dealer gives an overview of sourcing gem-quality Afghan emeralds.

Ethical and Sustainable Vertical Integration in the Sapphire Market
The recession of 2008 transforms a gem business into a vertically integrated operation.

Exceptional Freeform Tanzanite and Oregon Sunstone Rings
A family sources, designs, and carves gems for extraordinary jewelry and pieces.

Fine Gems and Update from Myanmar
A look at top-quality gems and insight into a delegation’s visit to gem mines in Myanmar.

Gem Paintings from Thailand
Paintings created from uncut gem fragments are seen at Tucson’s GJX show.

Golden Rutilated Quartz Artisanal Mining Community
Plans to develop a collective in a remote Brazilian rutilated quartz mining community are unveiled.

Importance of the Secondary Market for Fine Gems
Exceptional gems that are recirculated in the gem market make an impact at the Tucson shows.
Jewelry Industry Summit
A report from the second Jewelry Industry Summit, held in Tucson, Arizona on January 29–30, 2017.

Magnificent Sapphires from Montana’s Rock Creek Mine
A look at the 2016 sapphire production from Montana’s Rock Creek deposit.


New Designs from Paula Crevoshay
World-renowned jewelry artist Paula Crevoshay displays some of her newest pieces at the Tucson gem shows.

Brazil’s Enigmatic Diamonds, Cuprian Liddicoatite, and Silicon in Corundum
An overview of the Spring 2017 Gems & Gemology content.



Multi-Elemental Diffused and Melt-Grown Synthetic Sapphire
GIA examines a multi-elemental diffused and melt-grown synthetic sapphire for the first time.

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.

HPHT Synthetic Diamond Melee Without Si or Ni Defects
Quality assurance testing in the Bangkok lab reveals HPHT synthetic melee in larger sizes.

Ametrine Optical Dishes: Windows into the Effects of Crystal Structure
Optical activity is studied using a polished block of ametrine.

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.


.jpg)


