Oscar Heyman diamond full eternity band. Set with nine round brilliant cut diamonds alternated by nine rectangular baguette cut diamonds in open back rubover settings with a combined approximate weight of 1.35 carats, to an impressive linear full eternity band with polished edges, a smooth gallery and fancy open backholing, approximately 3.0mm in width. Marked platinum, numbered 'W1897', maker's mark for Oscar Heyman, American, circa 1970.
