Topaz from Mason County, Texas
A comprehensive look at Texas topaz, detailing its gemological and compositional characteristics and providing a basis for using trace element concentrations to identify its origin.
Micro-Features of Beryl
Provides a visual guide to the internal features of different varieties of beryl.
Slovak Opal: A New Life for a Historical Gem
Reports on the recent production of precious and common opal from a centuries-old locality.
Gems Recovered from Sedimentary Rocks
Explores the formation of sedimentary rocks, gems found and formed in sedimentary environments, and the alluvial mining of these gems.
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.
.jpg "YMAL GIA Ed")
