An internally flawless 102.39-carat diamond comes under the hammer at Sotheby’s in Hong Kong next month. There is no estimate but diamonds of this size and quality have D colour oval stone was cut from a 271-carat rough diamond discovered in Ontario, Canada in 2018. It has achieved top rank in each of the “four Cs” — cut, colour, clarity and carat weight — by which a diamond is judged. In the circumstances of the moment it is being offered without a reserve. Bidding opens online from September 15 and the sale end at a live auction in Hong Kong on October 5.
UPDATE: The diamond sold for $15.7 million to a telephone bidder in Japan