
GIA 檢驗世界第二大鑽石
In July 2025, staff from GIA, including GIA Executive Vice President and Chief Research and Laboratory Officer Tom Moses and Vice President of Research and Development Dr. Wuyi Wang, examined a rough diamond weighing 2,488.32 carats

GIA 檢驗世界第二大鑽石
In July 2025, staff from GIA, including GIA Executive Vice President and Chief Research and Laboratory Officer Tom Moses and Vice President of Research and Development Dr. Wuyi Wang, examined a rough diamond weighing 2,488.32 carats

GIA 於 10 月 1 日推出更新版的實驗室培育鑽石服務
GIA will launch revised evaluation services for D-to-Z laboratory-grown diamonds on October 1

GIA 於 10 月 1 日推出更新版的實驗室培育鑽石服務
GIA will launch revised evaluation services for D-to-Z laboratory-grown diamonds on October 1
How-To Guide: Testing Diamonds and Gems using UV Light
GIA developed this guide so retailers can use fluorescence tests to help identify gems right in their own stores.

GIA 任命 Sriram Natarajan 為全球鑑定所高級營運副總裁

GIA 任命 Sriram Natarajan 為全球鑑定所高級營運副總裁
Sriram 'Ram' Natarajan, previously managing director of GIA India Laboratory Private Limited (GIA India), has been appointed to a new role as senior vice president of laboratory operations.
Two Exciting Panels Featured at AGS x GIA Converge
Industry leaders and some of GIA’s most experienced gemological experts will share their expertise and insights with participants at Converge

Two Exciting Panels Featured at AGS x GIA Converge
Industry leaders and some of GIA’s most experienced gemological experts will share their expertise and insights with participants at Converge.

GIA 宣布 Pritesh Patel 出任GIA主席兼行政總裁
The Board of Governors of GIA has named Pritesh Patel, currently GIA’s Chief Operating Officer, as the Institute’s President and Chief Executive Officer

GIA 宣布 Pritesh Patel 出任GIA主席兼行政總裁
The Board of Governors of GIA has named Pritesh Patel, currently GIA’s Chief Operating Officer, as the Institute’s President and Chief Executive Officer.

GIA Evaluates Historic Diamonds in Christie’s Magnificent Jewels Auction
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.
CVD-Grown Diamond with an Unusual Blue Band
Checkered Pattern on Diamond
Assembled Bead Cultured Half-Pearl
Investigation in the Carlsbad laboratory reveals a pearl submission is not mabe as initially believed.

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