Lot 456. 21.73 carats Fancy intense yellow VS2 Clarity diamond ring. Estimate 420,000 — 610,000 CHF. Lot sold 494,500 CHF. Photo: Sotheby's 2012

The fancy intense yellow cut-cornered rectangular mixed cut diamond weighing 21.73 carats, set with triangular diamond shoulders, size 521/2.

Accompanied by GIA report no. 15176227, stating that the 21.73 carat diamond is Fancy Intense Yellow, Natural Colour, VS2 Clarity.

Sotheby's. Magnificent Jewels, Geneva, 14 Nov 2012