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FANCY COLOR DIAMOND

Dazzling brilliance. Captivating color. The planet’s most valued gems are fancy color diamonds.

FANCY COLOR DIAMOND
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Research

The Gemological Properties of the Sumitomo Gem-Quality Synthetic Yellow Diamonds

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The Gemological Properties of Russian Gem-Quality Synthetic Yellow Diamonds

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Fancy Color Diamond Description

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Color Grading of Colored Diamonds in the GIA Gem Trade Laboratory

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Fluorescence Produced by Optical Defects in Diamond

How variations in UV lamp output can affect observed fluorescence color and intensity.

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Acicular Troughs Coincident with Green Stains on Rough Diamond Surface

The author acquired an alluvial rough diamond from Guyana showing unique surficial features that do not appear to have been documented elsewhere.

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“Hummingbird” in Orangy Yellow Diamond

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Fancy Vivid Yellow HPHT-Grown Diamonds

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CVD-Grown Diamond with Unusual Cause of Greenish Color

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International Jewelry Tokyo 2024

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Spring 2024 Auction Highlights

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Characterization and Grading of Natural-Color Pink Diamonds

Known for their great beauty and rarity, pink diamonds have long been sought after by jewelers, collectors, and consumers.

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