A Harry Winston diamond necklace with a total weight of 177.51 carats will be auctioned by Sotheby's Hong Kong on September 24. The main diamond on the necklace is made of nine gradient pear-shaped gems, all of which are D-color and flawless.

Sotheby's estimates that the bid price for this auction is 36 to 46 million Hong Kong dollars (approximately $4.63 million to $5.92 million).

Buyers can choose to pay the hammer price in cryptocurrencies, including Bitcoin, Ethereum, or U.S. dollar tokens, crypto transactions will be conducted through Coinbase Commerce.

Sotheby’s sold "The Key 10138", a 101.38-carat rare pear-shaped diamond in July for $12.3 million, set the highest price to buy any jewelry or gemstone with cryptocurrency.

By Mary Liu