Coral, ruby and diamond necklace, Michele della Valle

Composed of four strands of graduated pink coral beads alternating with ruby beads and brilliant-cut diamond-set rondels, the clasp of oblong form set with brilliant-cut stones, mounted in white gold, signed Michele della Valle and numbered, pochette. length of shortest strand approximately 400mm. Estimate 20,000—26,000 CHF

Sotheby's. Magnificent Jewels. 19 Nov 08. Geneva. Photo Courtesy Sotheby's. www.sothebys.com