31 juillet 2016
Highly important sapphire and diamond ring
Lot 553. Highly important 39.00 carats Burmese 'royal blue' sapphire and diamond ring. Estimate 300,000 — 400,000 CHF. Lot sold 2,770,500 CHF. Photo Sotheby's 2012 Set with a step-cut sapphire of superb colour weighing 39.00 carats, between triangular...