GIA发表首份可持续发展报告
GIA总裁兼首席执行官苏珊·雅克（Susan Jacques）于6月2日星期五在拉斯维加斯举行的JCK 珠宝展宣布GIA将发表首份可持续发展报告，她表示：「GIA需要透彻了解我们对环境、社会及业务所在社区的影响，在此重要的基础上履行保障消费者的重要使命。」
责任采矿联盟（ARM）及无汞采矿（MFM）实地测试创新的手工黄金矿石处理系统
283 / 5,000 Translation results Translation result 最近成功进行了金矿石无汞加工创新系统的现场测试，这是保障手工、小规模金矿开采者 (ASGM) 及其社区的健康和安全以及改善经济成果的重要努力的重大进步 。
Quarterly Crystal: Columbite(?) in Beryl
Examination of a gem-quality aquamarine crystal reveals an inclusion cluster presumed to be columbite.
A “Flying Insect” in Diamond
A partially exposed orange garnet inclusion with surrounding fractures resembles a flying insect in a brownish yellow diamond.
Plastic Deformation: How and Why Are Most Diamonds Slightly Distorted?
A look at plastic deformation, one of the most prevalent features in natural diamond.
Liberian Ruby
A trip to a rural Liberian diamond mining community results in a newly discovered source of corundum.
Luminescent Synthetic Garnet-Like Crystals
Unique rough and faceted luminescent synthetic garnet-like crystals were on display at the 22nd Street show in Tucson.
Microscopic Shells in Natural Pearls from Pinctada radiata
Two pearls from Bahrain containing minute shells are examined at GIA’s Mumbai laboratory.
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.
Pinctada radiata Atypical Bead Cultured Pearls from the UAE
GIA’s Mumbai laboratory reports on pearl samples from a culturing experiment by the Suwaidi Pearl Farm in the UAE.
Exceptionally Rare Pearls from ECIJA
An impressive variety of natural, wild, nacreous, and non-nacreous pearls were on display at the GJX show.
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.
Sapphire from Montana’s Secondary Deposits, Colombian Emerald Morphology, the 2023 Tucson Shows, and More…
An overview of the Spring 2023 Gems & Gemology content.
Brenda Smith Jewelry Designs
Award-winning jewelry designer Brenda Smith shares some of her creations at the AGTA GemFair in Tucson.
Rare Double Pseudomorph Ikaite-Calcite-Opal
One of the finest specimens of double pseudomorph ikaite-calcite-opal ever unearthed was on display at the Pueblo Gem & Mineral Show.
Enormous Cat’s-Eye Aquamarine
A 586.43 ct cat’s-eye aquamarine is donated to the Smithsonian National Museum of Natural History.
Ethical Supply Chain Practices in Africa with Virtu Gem
A look at Virtu Gem, a company dedicated to improving artisanal mining practices in Africa.
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.
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