
A Unique Petrified Tree Fern from Northeast China
Documents the gemological properties, chemical composition, and appearance of petrified tree fern discovered in northeast China.

Texas Topaz, Slovak Opal, a Beryl Inclusions Chart, and More
An overview of the Winter 2023 Gems & Gemology content.


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《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



Chicago Responsible Jewelry Conference
A report on the seventh annual Chicago Responsible Jewelry Conference.

Translucent Ruby Filled with Zinc Glass
Examination of a heart-shaped ruby reveals a zinc glass filler.

Large Stellate Dislocation in Spinel
A greenish blue spinel displays a large network of needle-like dislocations clustered in a six-rayed star pattern.

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