KOLLER HIGHLIGHTS 2022

28 | A KASHMIR SAPPHIRE AND DIAMOND RING Circa 1970. Platinum 950, 7g. Set with a fine, cushion-shaped Kashmir sapphire of 4.62 ct, not heated, flanked by 2 circular-cut diamonds totalling ca. 1.80 ct. SOLD FOR CHF 230 000 Estimate: CHF 90 000 / 140 000 A DIAMOND PENDANT Circa 1900. Silver and yellow gold, 3g. Set with 1 cushion-shaped champagne- coloured diamond of 11.90 ct, ca. X-Y/SI1. SOLD FOR CHF 150 000 Estimate: CHF 60 000 / 90 000 A PARAIBA TOURMALINE AND DIAMONDRING 18K white gold, 12g. Set with a fine, turquoise- blue, Nigerian Paraiba tourmaline of 10.04 ct, surrounded by brilliant-cut diamonds totalling ca. 1.67 ct. SOLD FOR CHF 120 000 Estimate: CHF 40 000 / 60 000