17 février 2018
Emerald and diamond ring, Harry Winston, 1977
Lot 360. 29.63 carats Colombian Emerald and diamond ring, Harry Winston, 1977. Estimate 350,000 — 450,000 USD. Lot sold 492,000 USD. Photo Sotheby’s. The emerald-cut emerald weighing 29.63 carats, flanked by 2 tapered baguette diamonds, mounted in platinum,...