19 novembre 2017
A Diamond Single-Stone Ring, by Harry Winston, 1973
Lot 621. A 10.27 carats H colour and VVS1 clarity Diamond Single-Stone Ring, by Harry Winston, 1973. Estimate HK$ 1,450,000 - 1,600,000 ( €160,000 - 170,000 ) . Sold for HK$ 2,187,500 (€235,864). Photo: Bonhams. The marquise-cut diamond, weighing 10.27...