“Ice Jade” from Guatemala
Characterizes a translucent variety of jadeite jade from the Morales mine in Guatemala.
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.
Beyond Beauty: A Garnet Necklace Decoded
A platinum necklace featuring 28 rare garnets won two 2023 AGTA Spectrum Awards.
The Lengthy Vertical Journey of Superdeep Diamonds
Explores the journey of superdeep diamonds to the earth’s surface.
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.
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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