A 14 karat blackened gold, blue topaz, moonstone, hardstone and diamond brooch by Kung Tsung-Tzu. An 18 kart gold, natural pearl, sap...

A pair of diamond and natural pearl earrings. A pair of natural pearl, cultured pearl, enamel and diamond ear clips, late 19th centur...

An art nouveau 18 karat gold, black opal, and enamel pendant, circa 1900. An 18 karat gold, diamond, opal and enamel locket bracelet...

18 karat blackened gold, fire opal and diamond ring by Sifen Chang. 18 karat blackened gold, jelly fire opal, and diamond ring by Si...