A belle époque black opal and diamond pendant necklace, circa 1905
The central oval black opal within a frame of millegrain-set old brilliant and single-cut diamond ribbon bows, supported by similarly-set diamond knife-edge bars, terminating in a pear-shaped black opal, on a trace-link chain, mounted in platinum and gold, diamonds approximately 1.70 carats total, detachable surmount, pendant length 8.6cm, chain length 39.0cm, fitted case by The Goldsmiths & Silversmiths Company LTD, 112, Regent St London
