Oscar Heyman Brothers articulated diamond eternity ring. Set with twenty two round brilliant cut diamonds in open back grain set box collet settings with a combined approximate weight of 0.64 carats, to a smoothly conforming articulated full eternity band with one diamond set per link and with rectangular pierced backholing, approximately 2.5mm in width. Marked platinum, maker's mark for Oscar Heyman Brothers, numbered '1056', American, circa 1960.
