GIA 前理事 George Rossman（乔治·罗斯曼）博士去世
GIA 升级 iD100® 宝石测试设备，用以筛选粉红色钻石
加利福尼亚州卡尔斯巴德 - 2019 年 9 月 5 日 – GIA 于 9 月 4 日发布了业界领先的升级版 GIA iD100® 宝石检测设备，该仪器能够将天然粉红色钻石与实验室制造 (HPHT 和 CVD) 钻石及钻石仿品区分开来。
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！
GIA 前理事 George Rossman博士去世
George Rossman于 2 月 6 日逝世，享年 81 岁。1995 至 2007 年间，他曾担任GIA美国宝石研究院理事会成员，他还是加利福尼亚理工学院 (Caltech) 的矿物学名誉教授。
GIA 卡尔斯巴德毕业生荣获布契拉提基金会珠宝设计奖
GIA (Gemological Institute of America), together with the Gianmaria Buccellati Foundation, presented the ninth annual Gianmaria Buccellati Foundation Award for Excellence in Jewelry Design on February 6, 2026, to GIA Carlsbad graduate Catherine “Cathy” Aulick.
Susan Jacques荣获 GIA 表彰
11 月初，在加州卡尔斯巴德总部举行的 GIA 理事会会议上，研究院授予 Susan M. Jacques最高荣誉 — Richard T. Liddicoat杰出成就奖。
Blue Color in Quartz Caused by Elbaite Inclusions
Blue needle-like inclusions are analyzed in three quartz spheres.
Palaeoclavaria burmitis Inclusions in Burmese Amber
Fungal inclusions are studied in two specimens of Burmese amber.
Gaseous Carbon Dioxide Phases in Paraíba Tourmaline
Immiscible two-phase fluid inclusions are investigated in a 0.48 ct Paraíba tourmaline.
Diamond Ring Prize from an Arcade-Style Claw Game
A diamond ring from a claw game in Japan is analyzed.
Unusual Yellow Diamond with a Complex Growth History
A combination of growth and dissolution features contribute to a yellow diamond’s unique shape.
Low-Temperature Heat Treatment of Corundum and the Behavior of the 3161 cm–1 Infrared Band
A study analyzing the thermal behavior of the 3161 cm–1 IR feature in 10 natural corundum samples from various deposits.
Converge 2025 Speaker Presentations
A summary of presentations from 24 industry-leading experts at Converge.
Converge 2025 GIA Hands-On Sessions
GIA offered a variety of hands-on sessions for attendees during the Converge conference.
An Evaluation of Turquoise from the Mona Lisa Mine in Arkansas
Examines samples of Mona Lisa turquoise to identify their chemistry and structure, revealing copper as a major elemental component of the material.
Large Peridot from Myanmar with an Eight-Rayed Star
An eight-rayed star peridot with a star system made up of two different sets of inclusions is described for the first time.
Trapiche Pattern Formation of Grossular Garnets
GIA’s Tokyo laboratory examines three grossular garnets displaying six-rayed black inclusions arranged in a snowflake-like pattern.
Type IIa/IaB Diamond Showing Transient Type IIb Responses
A 2.50 ct natural type IIa/IaB diamond submitted to the Dubai laboratory shifts to type IIb after deep-UV excitation.
Low-Heft Hollow Natural Pearl with an Opening
Organic-rich material is observed through an opening in a hollow natural pearl.
.jpg "YMAL GIA Ed")
