30 avril 2015
Emerald and diamond ring
Lot 424. 29.67 carats Colombian emerald and diamond ring. Estimate 195,000 — 295,000 CHF (183,963 - 278,302 EUR ). Lot sold 514,000 CHF. Photo Sotheby's. Claw-set with an octagonal step-cut emerald weighing 29.67 carats, framed with circular- and brilliant-cut...