A diamond novelty pendant, by Christian Dior. Photo: Christie's Images Ltd., 2010

Modelled as a pavé brilliant-cut diamond skull and crossbones, to a cord neckchain, French mark; Signed Dior and No. B2042 - Estimate £2,000 - £3,000

A pair of diamond set cufflinks, by Christian Dior. Photo: Christie's Images Ltd., 2010

Each modelled as a skull and crossbones with brilliant-cut diamond mouth, to opposed single bone with chain link connection; Signed Dior and No. F4157 (2) - Estimate £1,200 - £1,500

A diamond novelty ring, by Christian Dior. Photo: Christie's Images Ltd., 2010

Modelled as a skull and cross bones with brilliant-cut diamond mouth, the hoop with heart motif to the reverse, finger size I, French mark; Signed Dior and No. A6978 - Estimate £600 - £800

Christie's. Jewels, 19 January 2011, London, South Kensington www.christies.com