Multi-gem set necklace by de Grisogono. An Archaeological-Revival gold, hardstone, and garnet necklace by Castellani, circa 1870. ...

A Russian-made amethyst and diamond brooch, late 19th century. Victorian late 19th century diamond brooch. Aquamarine and diamo...

A gold, diamond, emerald, and ruby bird brooch by Cartier. A carved emerald, ruby and diamond bird brooch by Van Cleef & Arpels,...