1960s Oscar Heyman Bros. diamond bombe cluster ring in platinum and 18kt yellow gold. Centred with a domed bombe cluster of round brilliant cut diamonds in platinum grain settings, to an impressive cluster design surrounded by textured twig-like gold work which continues to the gallery and shoulders, terminating to a ribbed shank. Estimated total diamond weight 1.23cts. Marked 18kt gold and platinum. Maker's mark Oscar Heyman Brothers.