2026 AWE & HKCEC
诚邀您莅临香港 HKTDC 展会，探索 GIA 的最新动态，包括仪器示范、零售支持工具、课程查询、现场收检服务及 GIA 宝石学家研讨会等活动。 同时，亦不要错过在会展 GIA展示的珍珠体验专区！
A Classification Scheme of Natural Radiation Stain Morphology and Texture on Diamond
Examines samples of Mona Lisa turquoise to identify their chemistry and structure, revealing copper as a major elemental component of the material.
历史文献清单: 历史上试图合成钻石的经验
Enumerating Diamond Cuts
Historical Reading List: Persian Turquoise
Historical Reading List: Ruby and Balas Ruby (Spinel)
Historical Reading List: Tourmaline and other Gem Minerals from Southern California
Historical Reading List: Peridot from Egypt
The Transformation of Diamond Cut Quality Grading: Where Are We Now?
GIA researchers trace the history and transformation of diamond cut grading, highlighting scientific breakthroughs that are reshaping how cut quality, brilliance, and visual performance are evaluated.
Now Enrolling – New GIA London Campus Opening this Fall
The soon-to-open GIA campus in London is now enrolling students for classes beginning in August 2026.
GIA 收购钻石溯源区块链平台 Tracr 30% 股权
John Cowley Joins GIA as Chief Financial Officer
John Cowley 加入 GIA 担任首席财务官
GIA 台湾校区焕新启程‧崭新亮相
GIA在台湾开设新校区
Tom Moses（汤姆·摩西）将于五月离开 GIA
The Gemological Institute of America (GIA) announced today that Tom Moses, executive vice president and chief laboratory and research officer, has decided to leave the institute after almost 50 years of service.
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