Jewelry Industry Summit
A report from the second Jewelry Industry Summit, held in Tucson, Arizona on January 29–30, 2017.
Characteristics of Gem-Quality By-Product Synthetic Zincite
Investigates the properties of synthetic zincite produced by industrial kilns in Poland.
New Designs from Paula Crevoshay
World-renowned jewelry artist Paula Crevoshay displays some of her newest pieces at the Tucson gem shows.
Importance of the Secondary Market for Fine Gems
Exceptional gems that are recirculated in the gem market make an impact at the Tucson shows.
Gem Paintings from Thailand
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
A New Discovery of Emeralds from Ethiopia
A report on a new Ethiopian source of high-quality emerald.
Tourmaline and Sapphire from Nigeria
An update on Nigerian colored stone production is obtained at the Tucson gem shows.
Brazil’s Enigmatic Diamonds, Cuprian Liddicoatite, and Silicon in Corundum
Quarterly Crystal:Mystery in Topaz
A topaz hosting a group of inclusions is examined in the Carlsbad lab.
Flashes and Flames in Ethiopian Opal (英語)
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.
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