featured Research & News

Industry Analysis

U.S. Retail Sales Remain Cautious

The numbers for jewelry retail sales, De Beer sights and auction sales tell the story. Read More
Feature Article

Over the Top at BaselWorld

Take an insider’s tour through the gem-studded halls of BaselWorld 2015 in Switzerland. Read More
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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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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Feature Article

Searching for Sapphire in Tasmanian Wilderness

Field gemologists journey to Tasmania to gather sapphire samples for GIA’s reference collection.
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