Zeki Karaca Jewelry: Luxury Pens
One-of-a-kind bejeweled pens from Zeki Karaca caught the attention of attendees at the GJX show.
Enormous Cat’s-Eye Aquamarine
A 586.43 ct cat’s-eye aquamarine is donated to the Smithsonian National Museum of Natural History.
Exceptional Gemstone Acquisitions by the Kreis Family
Stefan and Alexander Kreis share three impressive gemstone acquisitions at GJX in Tucson.
Forsterite in a Purple Tanzanian Spinel
Examination of a purple spinel from Tanzania reveals a rare forsterite inclusion.
Luminescent Synthetic Garnet-Like Crystals
Unique rough and faceted luminescent synthetic garnet-like crystals were on display at the 22nd Street show in Tucson.
New Tourmaline Pockets in San Diego County’s Pala District
Bill and Carl Larson share details about new tourmaline pocket discoveries at the Tourmaline King mine.
New Find of Petroleum-Included Quartz from Madagascar
Examination of quartz from a new source in Madagascar reveals complex fluid inclusions consisting of petroleum, methane, asphaltite, and water.
Plastic Deformation: How and Why Are Most Diamonds Slightly Distorted?
A look at plastic deformation, one of the most prevalent features in natural diamond.
Sapphire from Montana’s Secondary Deposits, Colombian Emerald Morphology, the 2023 Tucson Shows, and More…
An overview of the Spring 2023 Gems & Gemology content.
Sixth Annual Gianmaria Buccellati Foundation Award Winner
A graduate of GIA’s Jewelry Design program in London is the recipient of the 2022 Gianmaria Buccellati Foundation Award.
Morphology of Colombian Emerald: Some Less-Common Cases and Their Growth and Dissolution History
Evaluates the growth mechanisms of special morphological features in Colombian emerald, including possible relationships to trapiche emeralds and samples displaying the gota de aceite effect.
CVD Diamond Over 34 Carats Examined in GIA’s Hong Kong Laboratory
A look at the largest CVD diamond GIA has encountered to date.
GIA所有珍珠报告引入「孔雀绿」颜色范围注释
GIA美国宝石研究院将引入一项报告注释，在用黑蝶真珠蛤（Pinctada margaritifera）培育的养殖珍珠(一般称为大溪地珍珠)指定色彩中加入珍珠行业常用的色彩词汇「孔雀绿」（Peacock）。
GIA所有珍珠报告引入「孔雀绿」颜色范围注释
GIA美国宝石研究院将引入一项报告注释，在用黑蝶真珠蛤（Pinctada margaritifera）培育的养殖珍珠(一般称为大溪地珍珠)指定色彩中加入珍珠行业常用的色彩词汇「孔雀绿」（Peacock）。
GIA全年提供助学奖学金
GIA’s industry-leading and globally-recognized diploma and certificate programs educate professionals with the skills needed for success in the gem and jewelry industry.
Starry Night in Diamond
Cloud inclusions resembling stars at night are observed in a faceted diamond.
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