1 août 2016
Very fine ruby and diamond ring, Harry Winston
Lot 520. Very fine 6.09 carats Burmese ruby and diamond ring, Harry Winston. Estimate 430,000 — 715,00 CHF. Lot sold 818,500 CHF. Photo Sotheby's 2012 Claw-set with an oval ruby weighing 6.09 carats, between triangular diamond shoulders, size 52, maker's...