2 months ago, Sotheby's offered The De Beers Blue, a 15.10ct Fancy Vivid Blue Diamond emerald cut in Auction at its Live Auction on 27 April 2022, Hong Kong.(view previous blog.)
This amazing piece is the largest vivid blue diamond ever to appear at auction and the largest internally flawless step cut vivid blue diamond that the Gemological Institute of America (GIA) has ever graded (view certificate). Blue diamonds of this importance are exceptionally rare, with only five examples over 10 carats ever having come to auction, none of which have exceeded 15 carats, making the appearance of this flawless gem a landmark event in itself.
with a estimate of 48 millions US dollars, it surpassed with a total of 450.952.000 Hong Kong Dollars, a 57,473,999 US dollars (current change)! a price tag of 3806225$/carat.
The just smaller Oppenheimer Blue, Emerald cut Fancy Vivid Blue Diamond, 14.62ct was sold at Christie's on 18 May 2016 for 58.2Millions, we can consider this as a bargain!
congratulations for such a nice investment, we will expect it to come out in a few decades and see the outcoming.