Opal from West Java, Indonesia
At the AGTA show, Rare Earth Mining Co. (Trumbull, Connecticut) displayed an unexpected material: Indonesian opal reportedly from West Java.
Update on Russian Demantoid Production
Alexey Burlakov shares insights on the current production of Russian demantoid and emeralds.
Vibrantly Colored Gems
Bill Larson of Pala International reports a very strong AGTA Tucson show.
Interview with a Kenyan Miner and Dealer
Miriam Kamau, owner of Mimo Gems Traders Ltd. in Nairobi, transformed from an office assistant to a dealer and miner to a representative of her country on the international stage of the colored gemstone trade.
Update from the Responsible Jewellery Council (英語)
The Responsible Jewellery Council (RJC) has announced plans to include colored stones and silver in the next revision cycle for its Code of Practices, which RJC members are certified against.
Gianmaria Buccellati Foundation Award for Excellence in Jewelry Design
The first annual Gianmaria Buccellati Foundation Award for Excellence in Jewelry Design was presented to GIA graduate Catherine Zheng.
Aquamarine from Pakistan
A gemological investigation of the aquamarine that has emerged from northern Pakistan in recent years.
Turquoise from Western Arkansas
A report on turquoise from the only known U.S. deposit outside of the Southwest.
Ponderosa Sunstone Update
John Woodmark provides an update on the Ponderosa sunstone mine in Oregon.
Very Small Akoya Cultured Pearls
A selection of very small akoya cultured specimens demonstrates the challenges gemologists face when determining pearl origin.
Outlook on Opals from Mexico and Australia (英語)
Jürgen Schütz discussed the opal sourcing and cutting activities of the German firm Emil Weis.
Update on the Green Dragon Demantoid Mine in Namibia
Stephan Reif explains the mine-to-market approach at the largest continuously operating demantoid deposit.
Cultured Pearl Update
Fran Mastoloni shares his thoughts on the status of the cultured pearl market.
Fortieth Anniversary of the Belmont Mine
Marcelo Ribeiro offers an update on mining and cutting activities at the Belmont emerald mine in Brazil.
Rex Guo: The Science and Art of Recutting Fine Gemstones
Rex Guo describes how he sources and systematically recuts faceted stones to unlock their inner beauty.
Supply Chain Transparency and Beneficiation
Jean Claude Michelou shares his perspective on supply chain transparency and beneficiation in source countries.
Unheated and Unusual Colors
Margit Thorndal of Madagascar Imports offers her perspective on the colored stone market.
Finds from the Secondary Market
Dave Bindra shows some noteworthy pieces he obtained on the secondary market and shares his thoughts on the state of the colored stones market.
.jpg "YMAL GIA Ed")
