Pursue your passion Whether you’re taking the next step in your professional journey or starting a new career, GIA courses and diploma programs prepare you for success. We offer the finest gem and ...

At the GJX show, Pillar & Stone (San Francisco, California) offered bright green jade from Guatemala, confirmed to range from jadeite to omphacite, that was highly translucent to nearly transparent.

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 ...

ONLINE EDUCATION PAYMENT PLANS Tuition payment plans are available for the online courses listed below with the first installment and a non-refundable $35 plan administration fee due at the time of ...

关于 GIA GIA（美国宝石研究院）是成立于 1931 年的独立非营利机构，被公认为世界上最权威的宝石学机构。GIA 研发了著名的以颜色、净度、切工和克拉重量为标准的 4C，并于 1953 年创建了全球公认的国际钻石分级系统™，作为钻石品质的标准。 GIA 积极投入研究、教育、宝石鉴定所服务以及仪器研发 ...

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 ...

ハーバード・ビジネス・スクール（HBS）により開発されたこのプログラムは、新しいリサーチとベストプラクティスに焦点を当て、実践的な価値と実行可能なテクニックを提供します。参加者は、ハーバードの膨大なビジネス・インテリジェンス・リポジトリーを活用したHBSのケース・スタディ ...