Emerald and diamond brooch, second half of the 19th century. Estimate 10,000 — 11,000 GBP. Photo Sotheby's

Set with three graduated cushion-shaped diamonds, within a foliate surround of circular-cut diamonds, suspending five emerald drops, later brooch pin to reverse.

FORMERLY IN THE COLLECTION OF ADMIRAL STEPAN MAKAROV

Sotheby's. Fine Jewels, London, 1 dec. 2015, 10:00 AM