A rare occurrence of 14 trapiche patterns is observed in a garnet sample from Vietnam.

Documents the gemological properties, chemical composition, and appearance of petrified tree fern discovered in northeast China.

Explores the formation of sedimentary rocks, gems found and formed in sedimentary environments, and the alluvial mining of these gems.

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.

Provides a visual guide to the internal features of different varieties of beryl.

Reports on the recent production of precious and common opal from a centuries-old locality.

Examines a technique for setting cut garnets on glass objects, invented by Claudius vom Creutz of Nuremberg in the late sixteenth century.

The GIA New York laboratory is now accepting GIA graded diamonds for the same-day confirmation service that was announced on January 9.

GIA is taking strong action in response to reports of fraudulent GIA inscriptions on laboratory-grown diamonds cut to nearly match GIA graded natural diamonds.

GIA, whose expertise spans gemological research, laboratory services and education, is introducing the GIA Jade Report, featuring additional gemological information and a sleek, user-friendly layout to enhance the overall report experience for both industry professionals and consumers.

加州卡爾斯巴德 ─ 2023年11月20日 ─ 自2014年起擔任GIA理事會成員的約翰‧W‧威利（John W. Valley）博士，11月初在加州卡爾斯巴德舉行的年度例會後正式退任。理事會及GIA管理層感激他在任期間作出重大貢獻，特別以其名字命名一項GIA獎學金，以表敬意。

Dr. John W. Valley, a member of the GIA Board of Governors since 2014, retired from the Board following their regular annual meeting held in early November in Carlsbad, CA.

Anna Martin to Retire from GIA