Nanoscale Techniques for Characterizing Gemstone Coatings: A Case Study on Synthetic Moissanite
Provides a basis for analyzing colored coatings on a variety of polished gemstones.
Mineralogy and Geochemistry of Turquoise from Tianhu East, Xinjiang, China
Examines turquoise from northern China and identifies a geographic origin indicator to distinguish it from other Chinese sources.
Two Pen Pearls from Bahrain
GIA’s Mumbai laboratory reports on two non-nacreous pen pearls from Bahrain.
Seventh Annual Gianmaria Buccellati Foundation Award Winner
A graduate of GIA’s Jewelry Design program in Taiwan is the recipient of the 2023 Gianmaria Buccellati Foundation Award.
CVD with “Ancient Text” Clouds
A CVD-grown diamond exhibits an interesting clarity characteristic.
G&G Features in a Flash: Texas Topaz
Learn about Texas topaz history and geographic origin research.
New and Notable Finds from the GIA Lab: Winter 2023
Discover a bicolor chameleon diamond, a diamond with carbon dioxide, and a pink square inside a diamond.
Gems of Northern Madagascar Video with GIA Field Gemology
Learn all about the gems of Northern Madagascar in this exciting video with Wim Vertriest, GIA Manager of Field Gemology.
G&G in a Flash: The Journey of Superdeep Diamonds
How are Superdeep Diamonds Transported by Kimberlites?
GIA出版新书介绍好莱坞珠宝大师威廉‧鲁瑟
GIA出版新书介绍好莱坞珠宝大师威廉‧鲁瑟
GIA美国宝石研究院出版由研究馆员朱迪‧科尔伯特（Judy Colbert）与合撰人佩吉‧提阿米思（Peggy Tsiamis）合撰的新书《William Ruser: The Jeweler Who Charmed Hollywood》，回顾威廉‧鲁瑟（William Ruser）的一生和他辉煌的珠宝设计生涯，品鉴他天马行空的具象派淡水珍珠首饰。市场上不时也有他的杰出珠宝首饰出售，往往以高价成交。
GIA’s 7thAnnual Jewelry Design Competition Celebrates Emerging Talent
Recognizing the outstanding talent of GIA jewelry design students from around the world globally
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