A pair of multi-gem earrings, by Bulgari. Estimate CHF370,000 – CHF430,000 ($373,154 - $433,666). Photo Christie's Image Ltd 2015 Each sugarloaf cabochon amethyst and pavé-set diamond lotus surmount, suspending a pear-shaped cabochon emerald, weighing...

A diamond, emerald and ruby brooch, by David Webb. Photo: Christie's Images Ltd 2013. Set at the center with a detachable pear-shaped cabochon emerald within a circular and old European-cut diamond surround, to the carved cabochon ruby plaque with rectangular-cut...

18 karat gold, platinum, colored stone and diamond brooch, David Webb, and earclips . Photo Sotheby's The brooch of bombé form set in the center with a pear-shaped cabochon emerald measuring approximately 16.0 by 13.1 mm., framed by oval cabochon emeralds,...