The author recently examined a 3.58 ct yellowish green yttrium aluminum garnet, a manufactured product known in the trade as “YAG,” that contained numerous large flux-filled fractures.

Meghan Simmons, a graduate of GIA’s Jewelry Design program at the Carlsbad campus, received the fifth annual Gianmaria Buccellati Foundation Award for Excellence in Jewelry Design.

Approaching his 50th anniversary in the business, Stephen M. Avery (Lakewood, Colorado) reflected on his journey to becoming an award-winning lapidary artist, detailing his signature cuts and gem sets and offering advice to up-and-coming gemstone cutters.

An overview of the Spring 2022 Gems & Gemology content.

After 15 years in the making, Jeffrey Bilgore’s stunning blue sapphire pendant makes its debut at the AGTA show.

Sellers and buyers alike were delighted to be back at Tucson for the show season after a two-year absence.

Four-billion-year-old meteorite carved into a life-sized human skull draws attention at the 2022 AGTA show.

The finale of a two-part series on the mining history of Austrian emerald deposits in the Habachtal region.

Custom knife maker Loren Feldman details his craft, including his use of rare and fascinating materials such as gem dinosaur bone and meteorites.

Characterizes yellow topaz from this historical source, with particular emphasis on its photo luminescence behavior.

At the AGTA show, Rod and Nathaniel Cook of Washington Jade (Edmonds, Washington) told us about shifting their focus to cat’s-eye blue and bluish green nephrite jade.

The author acquired an alluvial rough diamond from Guyana showing unique surficial features that do not appear to have been documented elsewhere.

The New York laboratory reports on a new record size for CVD laboratory-grown diamond.

A very light blue hexagonal apatite inclusion is observed in natural smoky quartz.

A 3.03 ct stone submitted to GIA’s Bangkok laboratory was identified as a ruby from Mozambique with no indication of heating.

GIA’s New York laboratory reports on a 15.10 ct (17.47 × 11.53 × 7.94 mm) Fancy Vivid blue cut-cornered rectangular step cut named the De Beers Cullinan Blue diamond.

GIA 校友会 (GIA Alumni Collective™) 为世界各地的 GIA 文凭和证书课程毕业生提供分享真知灼见和创意灵感的联络平台。

作为宝石学研究、教育以及以科学为基础的宝石鉴定与分级服务方面的领导者，GIA 目前正在积极拓展宝石原产地服务，致力于向零售商和消费者提供所需的钻石产地信息。

加利福尼亚州卡尔斯巴德— 2 月 14 日（星期一）— 2 月 4 日，来自 GIA 卡尔斯巴德校区的 GIA 毕业生 Meghan Simmons（梅根·西蒙斯）荣获第五届 Gianmaria Buccellati Foundation Award for Excellence in Jewelry Design（吉安马里亚·布契拉提基金会珠宝设计卓越奖）。