$32,013,223, Hong Kong, April 2016
To celebrate the Millennium in 2000, De Beers, together with The Steinmetz Group, showcased an exceptional collection of eleven important blue diamonds, the De Beers Millennium Jewels, in a specially designed exhibit at London’s Millennium Dome. Offered for sale from an Asian private collection, this rare and internally flawless 10.10-carat blue diamond is the largest oval-shaped fancy vivid blue diamond ever to appear at auction and was the most expensive diamond ever sold in Hong Kong before the CTF Pink Star in April 2017.