featured Research & News

Gems & Gemology
Gems & Gemology

Winter Issue Features Rough Diamonds

Tenders and live auctions have brought sweeping changes to the rough diamond market.
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Research & News

2 Large HPHT-Grown Synthetic Diamonds

Examination by GIA’s Hong Kong lab reveals significant progress in this growth technology.
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Book Review

The Cheapside Hoard: London’s Lost Jewels

The Museum of London’s curator traverses the intriguing world of the Elizabethan jewelry trade.
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Alumni Profile

Grad Buys Headline-Grabbing Fancy Diamonds

Shmulik Polnauer buys Prosperity Pink, Pink Promise and Purple Orchid for Israel’s Leibish & Co.
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Alumni Profile

Daughter Embraces Role in Jewelry Empire

Cindy Yeung, GG, chairperson of Emperor Watch and Jewellery, oversees more than 80 locations in Asia.
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