29 mars 2015
Emerald and Diamond Ring
5.63 carats Colombian Emerald and Diamond Ring. Estimate 2,200,000 — 2,500,000 HKD (247,848 - 281,645 EUR). Photo Sotheby's. Centring on a step-cut emerald weighing 5.63 carats, flanked on each side by a trapezoid mixed-cut diamond together weighing 1.43...