Bright green and nearly transparent jade from Guatemala, similar to jade from Myanmar, was available in Tucson.

The spinel exhibited was reportedly mined in Makoko, a village in the southern part of the country. According to Smith, the early findings from this location were small and very poor in quality, until ...

GIA has evaluated more than 30 rare and historically significant jewels ahead of Christie’s Magnificent Jewels auction, taking place on June 17 in New York.

CARLSBAD, Calif. – June 20, 2025 – The Board of Governors of the Gemological Institute of America, Inc. (GIA) has named Pritesh Patel, currently GIA’s Chief Operating Officer, as the Institute’s ...

Unlock your potential with GIA’s gem education programs, offering expert-led courses in diamonds, gemstones, and jewelry to advance your career and knowledge.

Designed for clients who seek in-depth insights into every aspect of a jewelry item. Comprehensive analysis of the diamonds in an item, including number of stones, shape, estimated carat weight, color ...

While Federal financial aid is not available for Online Education students, GIA-administered scholarships and payment plans for selected online courses are.

Developed by the Harvard Business School (HBS), the program focuses on new research and best practices to deliver practical value and actionable techniques. Participants learn using the HBS case study ...

查看全球所有 GIA 机构的节假日安排。

加利福尼亚州卡尔斯巴德– 2025 年 6 月 12 日 – 6 月 17 日纽约举行的佳士得“Magnificent Jewels”拍卖会之前，GIA美国宝石研究院已对超过 30 件稀有且具有历史意义的珠宝进行了鉴定。其中最引人注目的是"Marie-Thérèse Pink粉钻 ...

Participants of the 2023 GIA Global Leadership Program (alphabetical order by first name): Adriaan Olivier, Signet Jewelers; Alexander David Gul, A.Gul KG; Amish Mehta, Amipi Inc.; Bart Marks, Fire ...

GIAは、6月17日にニューヨークで開催されるクリスティーズの「Magnificent Jewels（素晴らしい宝石）」オークションに先立ち、30以上の希少で歴史的に重要な宝石を鑑定しました。