周大福和 GIA 通过区块链向消费者提供钻石鉴定证书
Outlook on Opals from Mexico and Australia (英语)
Jürgen Schütz discussed the opal sourcing and cutting activities of the German firm Emil Weis.
Designs from Erica Courtney (英语)
Erica Courtney has been adorning Hollywood stars for the red carpet for decades. Her eye for color and bringing out a stone’s beauty are immediately apparent.
Update from the Responsible Jewellery Council (英语)
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.
Five CVD Synthetic Diamonds Greater Than Three Carats
The GIA lab examines five gem-quality CVD-grown diamonds in sizes that reflect the improving technology of the synthetic gemstone industry.
Turquoise from Western Arkansas
A report on turquoise from the only known U.S. deposit outside of the Southwest.
DNA Techniques Applied to the Identification of Pinctada Fucata Pearls from Uwajima, Ehime Prefecture, Japan
Shows how genetic material extracted from small amounts of pearl powder can be a useful indicator of this akoya cultured pearl species.
Supply Chain Transparency and Beneficiation
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.
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.