18 karat gold, enamel and diamond 'frog' brooch and ring, David Webb

Each realistically designed as a frog, the body applied with broad stripes of translucent emerald green enamel, the brooch decorated with clusters of small round diamonds for eyes, the ring simply set with 2 round diamond eyes, ring size 4½, signed Webb and David Webb respectively. Estimate 4,000—6,000 USD

Sotheby's. Important Jewels.| 04 Feb 09. New York www.sothebys.com photo courtesy Sotheby's