Italian, circa 1500, Gemstone ring. Photo courtesy Sotheby's

Gold, set with a later imitation pearl- bezel: 13mm., ½in. diameter - ring size P½. Estimation  2,500 — 3,500 GBP

Compare a cusped ring set with a turquoise in the Hashimoto collection illustrated in D. Scarisbrick, Historic rings. Four thousand years of craftmanship, Tokyo, 2004, no. 156.

Sotheby's. European Sculpture & Works of Art. London | 04 déc. 2013, 11:00 AM -www.sothebys.com