A pair of turquoise and diamond ear pendants, by Van Cleef & Arpels. Estimate $25,000 – $35,000. Photo Christie's Image Ltd 2015

Each flower surmount set with a circular cabochon turquoise, within a circular-cut diamond surround, suspending a detachable pendant centering upon a navette cabochon turquoise, within a circular-cut diamond surround, 2 3/4 ins., with French assay mark for 18k gold. Signed Van Cleef & Arpels, N.Y., no. 17432, with maker's mark

Christie's. IMPORTANT JEWELS, 20 October 2015, New York, Rockefeller Plaza