Vania Leles earned her GG from GIA in London in 2004 and promptly sent her curriculum vitae to Graff Diamonds on Bond Street for her dream job.

Colored diamonds are in the spotlight. They’re routinely breaking records at auction houses. Learn more about these gemological marvels of the rarest order.

Reports on rubies from the Montepuez area of Mozambique that have been heated at high temperature using a “flux‐assisted partial‐fissure‐healed” (FAPFH) and glass‐fissure‐filled (GFF).

The engagement ring’s romantic traditions resonate throughout time. The Romans first introduced the betrothal ring as a plain, iron hoop.

The opening reception for a Gems & Gemology museum exhibit at GIA

GIA’s first female gemologist and a pioneer in the industry.

A look back at the groundbreaking research of G. Robert Crowningshield

Describes several rubies treated with glass and experiments on rubies treated with glass, demonstrating that the stones are bonded together by the glass.

A childhood love of gems and minerals led to the transformation of GIA's library and to a lasting reputation of excellence.

GIAによるAGS IDEAL^®レポート

数々のデザイン賞を受賞する新進ジュエリーデザインアーティスト Trishala Ashok は、日常のありふれたものやささいな事柄の先を見て、ジュエリーを製作しています。