Lot 1637. A 3.88 carats Fancy dark grey-blue diamond and diamond ring. Estimate: 7,000,000 - 9,000,000 HKD. Courtesy Sotheby's.

Set with a cut-cornered rectangular modified brilliant-cut fancy dark grey-blue diamond weighing 3.88 carats, flanked by two trilliant-cut diamonds, mounted in 18 karat white gold, size 6.

Accompanied by GIA report no. 2191383781, dated 27 July 2020, stating that the diamond is Fancy Dark Grey-Blue, Natural Colour, VS1 Clarity.