Lot 162. An imperial Ottoman aigrette (surguc), Turkey, 18th century. Estimate 40,000 — 60,000 GBP (50,684 - 76,026EUR) . Photo: Sotheby's. centred on a large foil-backed emerald encircled by rows of rubies and diamonds, surmounted by a turban-form mount...

Fine and Important Aquamarine and diamond aigrette tiara, Cartier, 1912 Centring on a cushion-shaped aquamarine within an arched surround of interlaced open work scrolls millegrain set with circular- and rose-cut diamonds, surmounted by a pear-shaped...