Lot 318. Ruby and diamond brooch, Van Cleef & Arpels. Estimate 105,000 — 205,000 CHF. Photo: Sotheby's.

Of floral design, the petals set with calibré-cut rubies en serti mystérieux, the pistil embellished with brilliant-cut diamonds, the detachable stem and leaf set with brilliant-cut and baguette diamonds, signed Van Cleef Arpels, numbered, French assay and maker's marks, pouch stamped Van Cleef & Arpels.