Ruby and Diamond Parure from a Ducal house, ealy 20th century.  Photo Sotheby's

Comprising: a necklace designed as a series of clusters, each centring on a cabochon ruby within a border of circular-cut diamonds, the pinched collet connections and back set with similarly cut stones, length approximately 380mm; together with a pair of earrings similarly set, screw back fittings. Estimate 25,000-35,000 GBP - Lot Sold: 68,450 GBP

Property of a Ducal house

Sotheby's. Fine Jewels, London, 13 Jul 2011 www.sothebys.com