Oscar Heyman Brothers chrysoberyl cat's eye and diamond ring. Centrally set with a cushion shape cabochon natural chrysoberyl cat's eye in an open back claw setting with an approximate weight of 18.30 carats, encircled by twelve oval brilliant cut diamonds in open back claw settings with a combined approximate weight of 3.00 carats, to an impressive coronet cluster design featuring curving claws, an intricately pierced gallery and shaped open backholing, flanked by broad split shoulders which flow through to a solid shank. Marked 18 carat gold, platinum and iridium, makers mark for Oscar Heyman Brothers, numbered '302918', American, circa 2019.
