An opal and diamond pendant/brooch, 18ct white gold, vintage, made as a large oval shaped cluster pendant, featuring an oval, cabochon cut white opal to centre, measuring approximately 28 x 21 mm, weighing approximately 25.00cts, displaying strong varied spectral colours throughout, claw set in eight double claws, framed by a surround of brilliant cut diamonds in a scalloped edge, thirty-two totalling approximately 1.28ct, to reverse a flip pendant bail and fitted brooch pin