珍珠文憑課程

GIA 創立了鑽石分級的科學方法，制定了 4C 標準和國際鑽石分級系統 (International Diamond Grading System™)，該等標準為全球珠寶專業人士所廣泛使用。因此，這裡是學習鑽石分級藝術和科學的理想之選。

All payments must be in Hong Kong Dollar drawn on a licensed bank in Hong Kong.

The GIA Knowledge Sessions are a series of talks and seminars that engage participants in the most diverse and pressing issues in gemology today, including gemstone origin, laboratory-grown stones and new discoveries in field gemology.

加州卡爾斯巴德 – 2019 年 11 月 18 日 – 結合寶石的科學和美麗，《寶石與寶石學》(Gems & Gemology) 2019 年秋季季刊充滿了耀眼的圖像和詳細研究。

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.

No matter where you are in the world, you can submit diamonds, colored stones and pearls directly to any GIA laboratory location and be assured of consistent quality and service.

CARLSBAD, Calif. – April 8, 2019 – Retailers participating in GIA’s Retailer Support Program can now use an enhanced collection of colored stone materials to tell the story of these beautiful gemstones to their customers.

The board of directors of GIA India Laboratory Pvt. Ltd. (GIA India) has appointed Amit Pratihari as managing director, responsible for all aspects of GIA India’s gemological laboratories in Mumbai and Surat, as well as the GIA India school in Mumbai.

Identify a stunning variety of gemstones. Evaluate them by quality, rarity, and color. Study the most effective grading, buying, and selling techniques. A dazzling spectrum of opportunities awaits those who understand the colored stone marketplace.