Oscar Heyman sapphire and diamond eternity ring. Set with sixteen square step cut natural sapphires in open back channel settings, with a combined approximate weight of 0.80 carats, alternately set with sixteen round brilliant cut diamonds, approximately F-G colour, approximately VS1-VS2 clarity, with a combined approximate weight of 0.36 carats, in open back grain settings, to a smoothly conforming full eternity band featuring smooth polished borders and intricately pierced open backholing, approximately 2.5mm in width. Marked 18 carat gold, maker's mark for Oscar Heyman Brothers, numbered 'G9662', American.
