Ruby and diamond brooch, 'Deux Fleurs', Van Cleef & Arpels, 1996. Photo Sotheby's

Designed as two flowers, the petals composed of rubies en serti mystérieux, the pistils set with brilliant-cut diamonds, signed Van Cleef & Arpels, numbered, French assay and maker's marks, case stamped Van Cleef & Arpels. Estimation 135,000 — 225,000 CHF

Exposition: Van Cleef & Arpels, 50 Years of History, Geneva, 16 November 2013 to 1 March 2014.

Sotheby's. Magnificent Jewels and Noble Jewels. Genève, 13 mai 2014 -www.sothebys.com