An update on the activity at Potentate’s Montana deposits.

In recent years, the colored stone world has seen a growing appetite for unusual colors.

The Jewelry Development Impact Index (JDI), one of the initiatives from the second Jewelry Industry Summit in January 2017, has become the flagship project of the Minerals, Materials and Society (MMS) program at the University of Delaware. Patricia Syvrud, development manager of MMS, discussed the program, which she calls a “road map to responsibility.”

Mother-and-son team Laurie and Geoffrey Watt (Mayer & Watt, Maysville, Kentucky) noted that while there were plenty of customers at the AGTA show this year, the formula for success was a wide selection of materials and competitive pricing.

Cat’s-eye nephrite jade from Washington State. Washington Jade (Edmonds, Washington) made its Tucson debut at the AGTA show with nephrite jade from Washington State.

An update on activity at the Coscuez emerald source, as well as ruby deposits in Mozambique.

The president of Oregon’s Desert Sun Mining and Gems provides the outlook for activity at the Ponderosa sunstone mine.

Maine-based designer Derek Katzenbach discusses his education and inspiration.

Traveling gallery exhibits stunning mineral specimens during the Tucson gem shows.

At the AGTA show, Rod Griffin (Rod Griffin Boulder Opals, Silverado, California, and Queensland, Australia) told us that the world market for all types of opals continues to be strong, but Australia’s opal industry is shrinking due to the costs, challenges, and changing regulations of mining.

Shahin Aboosalih of SR Trading shares his insights on the gem and jewelry industry.

Thoughts from a longtime Tucson exhibitor on responsible practices and the changing market trends.

Susi Smither discusses her sustainable, responsible, and ethically based business practices.

An overview from the 2019 Tucson gem shows.

A composite of synthetically grown and natural diamond was recently identified by the Carlsbad laboratory.

Annotated reading lists compiled on Emeralds from Colombia

Researchers from GIA’s Bangkok laboratory seek to identify low-temperature heat treatment in basalt-related blue sapphires.

ダイヤモンドに閉じ込められた鉱物インクルージョンが大陸の構造を解明し、ダイヤモンドが形成された年代をGIAの研究員が判断する際の手がかりとなります。

デビアスは変動に対応し、Federal Trade Commission（連邦取引委員会）はラボで製造されたダイヤモンドに関する警告を発行します。また、302.37カラットのGraff Lesedi La Rona（ザ グラフ レセディ ラ ロナ）の詳細が発表されます。

この天然に鮮やかなブルーサファイアの採鉱および目立つ特徴を報告します。