12 mai 2017
Very fine emerald and diamond ring, Harry Winston
Lot 315. Very fine 21.34 carats Colombian emerald and diamond ring, Harry Winston. Estimate 165,000 — 225,000 CHF . Photo: Sotheby's Set with a step-cut emerald weighing 21.34 carats, between triangular diamond shoulders, size 48, signed Winston, maker's...