It is the era of the big diamond – this time, it is a big fancy blue one! Sotheby’s is including in its Magnificent Jewels and Noble Jewels sale, The Blue Moon diamond. The stone is the largest cushion shaped, fancy vivid blue diamond ever to appear at auction. The diamond weighs 12.03 carats. It will be a major highlight at the sale in Geneva on November 11, 2015.
The Blue Moon has been graded by the Gemological Institute of America (GIA) as a Fancy Vivid Blue, the highest possible color grading for blue diamonds. The cushion cut stone also boasts exceptional clarity, having been declared Internally Flawless by the GIA. According to the GIA Monograph, the hue of the Blue Moon diamond is “likely to have never before been seen within such a large diamond, or any gemstone,” and “could be indescribable to even the most experienced diamontaire or color theorist; some, however, liken it to the ocean.” Also from the GIA Monograph: “While any diamond with natural blue coloration is a rare discovery, some are so exceptional that they emerge only once in a lifetime. The Blue Moon Diamond is one of those remarkable occurrences.”
The diamond carries an estimate of US$ 35-55 million.
David Bennett, Worldwide Chairman of Sotheby’s International Jewellery Division, commented: “The tremendous excitement last year over the discovery of a 29.62-carat blue rough diamond at the Cullinan mine in South Africa has now been proven to have been totally justified. Weighing in at 12.03 carats, the ‘Blue Moon’ diamond is a simply sensational stone of perfect color and purity, combined with a superb cushion shape. Blue, for me, is the most mysterious and magical of all the colors of diamond, and the Blue Moon will now take its place among the most famous gems in the world.”
The diamond was drawn from a 29.62-carat rough blue diamond that was discovered by Petra Diamonds at its Cullinan mine in South Africa last year. It was bought by New York based Cora International at a tender by Petra Diamonds. The Blue Moon Diamond’s name refers to the expression ‘once in a blue moon’, which is used to describe something that happens infrequently.
The Blue Moon diamond will be exhibited in Hong Kong, London and New York before its likely purchase at auction in Geneva on November 11. The diamond had been “living” at the Natural History Museum, Los Angeles County since September 2014 and was supposed to be on exhibit there until January 6, 2016.
The record sale for a blue diamond came in November of last year, when a 9.75 carats fetched $32.6 million at auction in New York.
The Blue Moon Diamond. Photo courtesy of Natural History Museum, Los Angeles County.
Beautiful no? I would like to swim in that ocean!