
Book Review: Women Jewellery Designers
Review of Women Jewellery Designers by Juliet Weir-de La Rochefoucauld.

De Beers’ Synthetic Shock Draws Mixed Reactions at 2018 JCK
Retailers had mixed reactions to De Beers’ announcement that it would offer a low-priced line of synthetic diamond jewelry, called Lightbox.

JCK Las Vegas 2018: Demand Improves, But Attendance Declines
Jewelry designers, manufacturers and diamond dealers generally saw steady, if still somewhat cautious, business.

Large Pinkish Orange CVD Synthetic Diamond
A combination of size, color, and clarity made this the most remarkable CVD synthetic diamond GIA has tested so far.

Characterization of Blue Sapphires from the Mogok Stone Tract, Mandalay Region, Burma (Myanmar)
The Mogok Stone Tract of central Myanmar (Burma) is one of the world’s most famed sources of colored stones, particularly ruby, sapphire, and spinel.
周大福和 GIA 通过区块链向消费者提供钻石鉴定证书

2018: A Good Year for Finding Mega-Diamonds
The three diamond mining companies that specialize in digging up large stones have found some really big ones during the first quarter of the year.



Natural Blister From Entombment Of A Pearlfish Within A Pinctada Maxima Shell
A blister in a P. maxima shell, formed when the mollusk's nacre covered a trapped pearlfish, preserves the fish in stunning detail.

Dendritic Inclusions in Cambodian Sapphire
A sapphire from Pailin, Cambodia, hosts inclusions that are unusual for this material.

Omphacite and Chromite: A "Bimineralic Inclusion" in Diamond
Two inclusions appear joined in a diamond host.

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.


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.

Outlook on Opals from Mexico and Australia (英语)
Jürgen Schütz discussed the opal sourcing and cutting activities of the German firm Emil Weis.

Ponderosa Sunstone Update
John Woodmark provides an update on the Ponderosa sunstone mine in Oregon.

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.

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