14 karat gold and onyx botanical sketch easel, Verdura. photo Sotheby's

The sketch with various botanical drawings on ivory with the scientific classification for each plant on the reverse, signed Fulco Pinxit, the gold easel set with an onyx cabochon, signed Verdura; together with an 18 karat gold and lapis lazuli frame, set with lapis lazuli cabochons, containing a sketch of lilacs on paper, the frame signed Schlumberger, Paris. Est. 5,000—7,000 USD. Lot Sold 26,250 USD

18 karat gold, amethyst, emerald and diamond flower brooch, Verdura. photo Sotheby's

Set with cabochon amethysts, cabochon emeralds, and round diamonds weighing approximately 1.35 carats, signed Verdura. Est. 6,000—8,000 USD. Lot Sold 17,500 USD

Sotheby's. Important Jewels. 03 Feb 10. New York www.sothebys.com