Quarterly Crystal:Mystery in Topaz
A topaz hosting a group of inclusions is examined in the Carlsbad lab.
New Designs from Paula Crevoshay
World-renowned jewelry artist Paula Crevoshay displays some of her newest pieces at the Tucson gem shows.
A New Discovery of Emeralds from Ethiopia
A report on a new Ethiopian source of high-quality emerald.
Ethical and Sustainable Vertical Integration in the Sapphire Market
The recession of 2008 transforms a gem business into a vertically integrated operation.
Jewelry Industry Summit
A report from the second Jewelry Industry Summit, held in Tucson, Arizona on January 29–30, 2017.
Golden Rutilated Quartz Artisanal Mining Community
Plans to develop a collective in a remote Brazilian rutilated quartz mining community are unveiled.
Tourmaline and Sapphire from Nigeria
An update on Nigerian colored stone production is obtained at the Tucson gem shows.
Magnificent Sapphires from Montana’s Rock Creek Mine
A look at the 2016 sapphire production from Montana’s Rock Creek deposit.
Exceptional Freeform Tanzanite and Oregon Sunstone Rings
A family sources, designs, and carves gems for extraordinary jewelry and pieces.
Three Faceted Collector Specimens
Three mineral species, not previously seen in the Carlsbad lab, are examined.
受賞に輝いたデザイナーのジュエリー、家族の歴史を蘇らせる
Revere Academy(リビア・アカデミー)主催2016年タヒチ産真珠ジュエリーデザインコンテストで優勝に輝いた、GIAのJDTプログラムの卒業生が、彼女の家族のジュエリーの遺産を蘇らせます。
Negative Crystals in Sapphires
Sapphires from Baw Mar host multiphase inclusions in appealing patterns.
The Role of Silicon in the Color of Gem Corundum
Considers the previously unreported but critical impact of silicon on the coloration of gem-quality sapphire.
タイのチャンタブリー産サファイアおよびその宝石学特徴の研究
バンコクのGIAラボによるレポートは、チャンタブリー県のKhao Ploy Waen地区の採掘者から取得した59個のブルーサファイアの試料に関する研究結果を発表します。
高級品会社、富裕減少の時代に適応する
Baselworld 2017(バーゼルワールド2017): 高級ジュエリーデザイナーは、派手で宝石だらけの外見を見直し、より芸術的なデザインに移ってきています。 ピンクスターダイヤモンドが、7100万ドルで落札されました。

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