Oscar Heyman square step cut diamond eternity ring. Set with thirty square step cut diamonds, approximately F-G colour, approximately VVS-VS1 clarity, with a combined approximate weight of 1.32 carats, in open back channel settings, to a smoothly conforming full eternity band framed to top and bottom with parallel polished borders and fitted to reverse with intricately pierced square backholing, approximately 2.7mm in width. Marked platinum, maker's mark for Oscar Heyman Brothers, numbered 'W3393', American.
