Oscar Heyman Bros. American 1970s Platinum & 18KT Yellow Gold Sapphire Ring

This vintage Oscar Heyman Brothers ring, made in America circa 1970, features a bi-colour twist design with polished edges and open backholing. Sixteen rectangular calibre-cut natural sapphires are set in open-back rubover and channel settings, with an approximate combined weight of 2.64 carats. Crafted in platinum and 18kt yellow gold, it is marked with the maker’s mark for Oscar Heyman Brothers. Ring size is US 5.5 and it can be resized.