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


A report on a submission of 26 yellow HPHT-grown diamonds from the Hong Kong laboratory.
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An omphacite inclusion surrounded by fractures in an orangy yellow diamond takes the shape of a hummingbird.
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Presents the first scientific and historical study conducted on the 2.33 ct Winston Red, the fifth-largest known Fancy red diamond in existence.
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A look at Harvey Liberman’s career as a renowned diamond cutter in New York’s Diamond District.
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The Carlsbad laboratory reports on two HPHT-grown diamonds with interesting sector-dependent color zonation.
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Strong linear brown zoning is observed in a Fancy Dark yellow-brown diamond.
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A look at Japan’s largest jewelry trade show, International Jewelry Tokyo, held in January 2024.
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Several lots sold during the spring auction season far exceeded their presale estimates.
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Testing of five CVD laboratory-grown diamonds submitted to the New York laboratory reveals post-growth treatment to achieve fancy colors.
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Two diamonds analyzed in the New York laboratory lead to a newly identified cause of orange color.
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