Forbes contributors publish independent expert analyses and insights. Kate Matthams Spencer is a Paris-based writer who covers jewelry. A 41.28ct, ice-blue diamond has been unearthed at the famous ...
Christie’s will present the largest fancy vivid blue diamond to be offered at auction. Named “The Golconda Blue,” it weighs 23.24 carats and has an estimate of $35 - 50 million. It will be the ...
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