A fine pair of ruby, mother-of-pearl and diamond ear clips by BOGH-ART. Photo: Christie's Images Ltd., 2010 Of marquetry design, each mother-of-pearl ear clip inlaid with an oval-shaped ruby weighing 11.40 and 10.17 carats respectively, within a Calibré-cut...

A magnificent diamond ring, by J. Roca. photo: Christie's Images Ltd 2010 The ring composed of a cut-cornered rectangular diamond weighing 17.71 carats to the tapered baguette-cut diamond shoulders with plain hoop. Signed by J. Roca. Estimate $1,000,000...