GIA to Use New Descriptive Terminology for Laboratory-Grown Diamonds
Beginning later this year, GIA will start using descriptive terms to characterize the quality of laboratory-grown diamonds
GIA Names Sriram Natarajan Senior Vice President of Laboratory Operations
GIA Diamond Focus® Report Submission Guidelines
GIAダイヤモンドフォーカス®レポートは、重量0.15〜0.29カラットの、DからZの厳選された未処理の天然ダイヤモンドを対象とし、デジタル形式で主要なグレーディング情報をお届けする、費用対効果の高いグレーディングレポートです。
Book Review: Pegmatites and Their Gem Minerals
Innovative Graduate Jeweler Program Launches In 2037
Innovative Graduate Jeweler Program Launches In 2036
Innovative Graduate Jeweler Program Launches In 2035
GIA Laboratory-Grown Diamond Report - Dossier at a Lower Cost
The Gemological Institute of America (GIA), the leading gemological grading and identification organization, is now offering a lower-cost GIA Laboratory-Grown Diamond Report - Dossier.
GIA Examines 34.59 Carat CVD Laboratory-Grown Diamond
GIA Enhances its Emerald Reports
鑑於業界日漸關注祖母绿填充物的資訊，GIA 將由 12 月 15 日開始在其祖母綠報告中加入填充物鑑定服務。此填充物鑑定服務為自選項目，服務新推出期間將免費提供。
GIA Commits $1.3 Million to Artisanal Mining Education Project
CARLSBAD, Calif. – Oct. 16, 2019 – Building on a successful pilot and feedback from small-scale colored gemstone miners in Tanzania, GIA will expand distribution of its innovative gem guide for artisanal miners to other communities and countries in Africa.