Green enamel, ruby, emerald and diamond ram's-head bangle-bracelet, David Webb

Designed as a ram's-head with curling articulated body, applied throughout with translucent green enamel, studded with small gold spirals, the head set with 2 cabochon ruby eyes, further decorated with a cabochon ruby and diamond floral ornament, the tail decorated with a cabochon emerald and round diamonds, the whole set with 45 round diamonds weighing approximately 2.00 carats, mounted in 18 karat gold and platinum, signed David Webb. Est. 20,000—30,000 USD

Sotheby's. Magnificent Jewels. 23 Apr 09. New York www.sothebys.com Photo courtesy Sotheby's