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Diamond

Diamonds are among nature’s most precious and beautiful creations.

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Jeweled Butterflies Welcome Spring

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Over the Top at BaselWorld 2015

An insider’s tour through the Basel show

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U.S. Retail Sales Remain Cautious

Caution continues so far in 2015. The numbers for jewelry retail sales, De Beer sights and Sotheby’s and Christie’s auction sales tell the story.

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De Beers Reduces RoughPrices – Too Little?

De Beers reduces rough prices at May sight, undisclosed treated diamonds submitted to GIA and Sotheby’s, Christie’s sales break auction records − again.

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Near-Colorless Melee-Sized HPHT Synthetic Diamonds Identified in GIA Laboratory

The Bangkok lab examines near-colorless HPHT synthetic diamonds in melee sizes.

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LPHT-Annealed Pink CVD Synthetic Diamonds

The New York lab examines three pink CVD synthetic diamonds which have received LPHT annealing treatment.

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Special Jewelry Collection Showcases Innovative Designs, Techniques

The GIA Museum showcases contemporary jewelry pieces donated by the American Jewelry Design Council.

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Summer 2015 G&G: Dual-Stars, Photomicrography Guide, Rubies from Tajikistan, New Micro-World Section

G&G Brief presents an overview of the content of the Summer 2015 issue of Gems & Gemology.

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Conversation with Jewelry Designer Martin Katz

From micro-pave to mega-watt glam, jeweler Martin Katz dazzles Hollywood stars and titans of industry alike. The award-winning designer shares his love of flying, why puka shells matter, and the blue diamond he’ll never forget.

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Fall 2015 G&G: Trapiche Emeralds, Synthetic Diamonds and a Large Diamond Source

G&G Brief presents an overview of the content of the Fall 2015 issue of Gems & Gemology.

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Letseng’s Unique Diamond Proposition

Explores the history, geology, and current production of this unique source of large diamonds.

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Rough Diamond Fragment with a Large Green Cleavage Surface

A colorless diamond crystal fragment shows an eye-visible bluish green internal induced radiation stain that developed in a near-surface environment.

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