Ruby and diamond brooch, Van Cleef & Arpels, 1989Photo Sotheby's 2013

Designed as a flower, the petals composed of calibré-cut rubies en serti mystérieux, the centre set with a brilliant-cut diamond, the stem with baguette diamonds, signed Van Cleef & Arpels and numbered, French assay and maker's marks, case by Van Cleef & Arpels. Lot 609. Estimate 57,000 — 75,000 CHF. Lot sold 161,000 CHF

Sotheby's. Magnificent Jewels and Noble Jewels, Geneva, 14 May 2013