28 avril 2017
Fine sapphire and diamond ring
Lot 340. Fine 11.64 carats Kashmir 'royal blue' sapphire and diamond ring. Estimate 1,310,000 — 1,910,000 CHF . Photo: Sotheby's. Set with a cushion-shaped sapphire weighing 11.64 carats, between triangular diamond shoulders, size 57, sizing band, maker's...