Sapphire and diamond ballerina ring. Set slightly raised to centre with an elongated oval brilliant cut diamond in an open back four claw setting with a weight of 1.17 carats, encircled by a row of fifteen tapered channel set baguette cut diamonds in open back rubover settings with a combined weight of 1.50 carats, and a row of fifteen tapered baguette cut channel set natural sapphires in open back rubover settings. The total approximate diamond weight is 2.67 carats, the two encircling rows flow in an undulating concentric fashion to an outward spray with a linear openwork gallery and supportive curved shoulders and intricate backholing, leading down to a solid tapered flat shank. Marked 18 carat yellow gold, maker's mark for Oscar Heyman Brothers, numbered '30110' American, circa 1976, accompanied by Oscar Heyman Brothers authenticity certificate.
