Lot 129. Emerald and diamond necklace-brooch combination and a pair of cultured pearl and diamond ear clips. Estimate CHF72,000 — 102,000. Photo: Sotheby's.

The necklace set with marquise-, pear-shaped and brilliant-cut diamonds, the front decorated with a pear-shaped emerald, central motif detachable, may be worn as a brooch, length approximately 440mm; each ear clip surmount set with a cultured pearl and brilliant-cut diamonds, supporting a pendant set with pear-shaped and brilliant-cut diamonds, collapsible post fittings.