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A blue moon diamond weighing 12.03 carats and described by experts as internally flawless could sell for a record $55 million when it goes up for auction in Geneva in several weeks, Sotheby’s said on Thursday.
The Blue Moon diamond, discovered in South Africa in January last year, has been described by experts as internally flawless and will be exhibited in Hong Kong, London and New York before its likely purchase at auction in Geneva on November 11.
“The Blue Moon diamond is a simply sensational stone of perfect colour and purity,” David Bennett, who heads Sotheby’s international jewellery division, said in a statement.
He added that the immense hype which followed the stone’s discovery “has now been proven to have been totally justified.”
The Gemological Institute of America previously declared the Blue Moon to be “internally flawless”.
Categorised as a fancy vivid blue diamond, the Blue Moon is the largest cushion-shaped stone in that category to ever appear at auction.
Sotheby’s put its estimated sale price between US$35-US$55 million which, at the higher end, would mark a record for any diamond sale.
In November 2010, a 24.78 carats pink diamond – known as the Graff Pink – sold in Geneva for just over US$46 million.
The record sale for a blue diamond so far came in November last year, when a 9.75 carats fetched $32.6 million at an auction in New York.
Agencies/Canadajournal
