KOLLER HIGHLIGHTS 2021

| 37 A BURMA RUBY AND DIAMOND RING BY PÉCLARD Set with a very fine cushion-shaped Burma ruby of 5.12 ct, not heated, surrounded by brilliant-cut diamonds. Total weight of brilliant-cut diamonds ca. 1.00 ct. SOLD FOR CHF 810 000 Estimate: CHF 180 000 / 280 000 A FANCY DIAMOND RING BY TIFFANY & CO. Set with a radiant-cut diamond of 8.45 ct, Fancy Yellow/IF-VS1*, flanked by 2 triangular diamonds totalling ca. 1.35 ct. SOLD FOR CHF 183 000 Estimate: CHF 80 000 / 120 000 A CEYLON SAPPHIRE AND DIAMOND RING Circa 1950. Set with an oval, very fine Ceylon sapphire of 23.77 ct, not heated, flanked by 4 diamond baguettes totalling ca. 0.70 ct. SOLD FOR CHF 195 000 Estimate: CHF 90 000 / 140 000