11 avril 2017
Gold and Colombian Emerald Ring
Lot 37. Gold and 12.89 and 11.47 carats Colombian Emerald Ring. Estimation 150,000 — 200,000 USD . Photo: Sotheby's. Set with two emerald-cut emeralds weighing 12.89 and 11.47 carats, gross weight approximately 17 dwts, size 5¾. Accompanied by Gübelin...