10 novembre 2015
Fancy coloured sapphire, rock crystal and diamond brooch, 'Pont', René Boivin, circa 1930
Fancy coloured sapphire, rock crystal and diamond brooch, 'Pont', René Boivin, circa 1930. Estimate 40,000 — 59,000 CHF. Photo Sotheby's Of bombé design, set with cushion-shaped coloured sapphires, between lines of circular-cut diamonds, the edges composed...