
Exquisite Butterfly in Diamond
A crystal inclusion with a stress halo resembles a colorful butterfly in a 1.01 ct diamond.

An Unusual Partially Non-Nacreous Pinctada radiata Natural Blister Pearl
A large Pinctada radiata natural blister pearl displays a unique reaction under long-wave ultraviolet light.

Octahedral Gahnospinel Crystal in Sri Lankan Blue Sapphire
A rare octahedral gahnospinel crystal is observed in Sri Lankan sapphire.


Bohemian Garnets as Decorative Materials for Glass Vessels from the Late Sixteenth to Early Eighteenth Centuries
Examines a technique for setting cut garnets on glass objects, invented by Claudius vom Creutz of Nuremberg in the late sixteenth century.
GIA推出Gemolite®NXT显微镜
GIA美国宝石研究院最新推出的Gemolite®NXT宝石学显微镜刷新宝石业的标准,这款新品现可供选购,GIA特别在整个AGTA GemFair Tucson珠宝展期间提供限时折扣,欢迎访客购买。有兴趣的客户请访问store.GIA.edu登记加入关注名单。

GIA推出Gemolite®NXT显微镜
GIA美国宝石研究院最新推出的Gemolite®NXT宝石学显微镜刷新宝石业的标准,这款新品现可供选购,GIA特别在整个AGTA GemFair Tucson珠宝展期间提供限时折扣,欢迎访客购买。有兴趣的客户请访问store.GIA.edu登记加入关注名单。
GIA Same-Day Report Confirmation Service Available in New York
The GIA New York laboratory is now accepting GIA graded diamonds for the same-day confirmation service that was announced on January 9.


GIA 推出《玉石鉴定报告》
GIA美国宝石研究院的专业知识涵盖宝石学研究、鉴定所服务和教育, 现宣布推出提供更全面的宝石学信息的《GIA玉石鉴定报告》,采用简单易用的版面设计,增强行业专业人士和消费者的整体报告体验。

GIA 推出《玉石鉴定报告》
GIA美国宝石研究院的专业知识涵盖宝石学研究、鉴定所服务和教育, 现宣布推出提供更全面的宝石学信息的《GIA玉石鉴定报告》,采用简单易用的版面设计,增强行业专业人士和消费者的整体报告体验。

理事会成员约翰‧威利(John W. Valley)博士退任
加州卡尔斯巴德 ─ 2023年11月20日 ─ 由2014年起担任GIA理事会成员的约翰‧W‧威利(John W. Valley)博士,11月初在加州卡尔斯巴德举行的年度例会后正式退任。GIA理事会及领导高度表扬其在任内作出重大贡献,宣布以其名字命名一项GIA奖学金,以示敬意。


Anna Martin to Retire from GIA
Anna Martin, GIA’s senior vice president of Institute and industry relations, will retire from GIA on December 31, 2023, after a very successful nine years with the Institute, 14 years on the GIA Board of Governors and more than 40 years as one of the most well-known and respected leaders in the gem and jewelry industry.


GIA于加州卡尔斯巴德举行环球研究团队会议


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