Lot 23. Emerald and diamond brooch, early 20th century and later. Estimate 6,000 — 8,000 GBP. Photo: Sotheby's.

Millegrain-set with circular-cut diamonds, the central element set with calibré-cut emeralds, accented with two cabochon emeralds, indistinctly signed Cartier..

Sotheby's. Fine Jewels, London, 21 Sep 2016, 10:30 AM