11 décembre 2015
18 Karat Gold, Platinum, Emerald and Diamond Ring
18 Karat Gold, Platinum, 14.78 carats Colombian Emerald and Diamond Ring. Estimate 500,000 — 700,000 USD. Lot sold 610,000 USD . Photo Sotheby's Centering an emerald-cut emerald weighing 14.78 carats, flanked by two triangle-shaped diamonds weighing approximately...