The diamond is expected to become the most expensive jewel ever sold to online auctions, where it is expected to generate between 12 and 30 million dollars.
Sotheby’s said the flawless white diamond is the second largest oval diamond of its kind to be auctioned.
The largest diamond weighed 118.28 carats, and set a record price of $ 30.8 million when it was sold at auction in 2013.
“Diamonds of this caliber and size have been sold for between $ 11.9 million to $ 33.7 million,” said Koig Brunning, head of jewelry at Sotheby’s in New York.
Only 7 diamonds of this type, known in the commercial world as flawless white diamonds or “perfect” diamonds, over 100 carats, were sold at previous auctions.
The diamond will be sold at no starting price at Sotheby’s in Hong Kong on October 5.
Sotheby’s said the gemstone, cut from 271 carats, was discovered in a mine in the Canadian province of Ontario in 2018 and has been cut and polished for more than a year.