Auction Previews

First Look: Sotheby’s to Offer “The Blue Moon” — A Sensational Blue Diamond

Natural blue diamonds are a rare discovery and the Blue Moon is one of those remarkable occurrences. At 12.03 carats, the Blue Moon is the largest cushion-shaped fancy vivid blue diamond ever to appear at auction. This spectacular gem will be offered as a major highlight of Sotheby’s Magnificent Jewels and Noble Jewels sale in Geneva on 11 November 2015.  

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