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Natural Sapphire and Diamond Cluster Ring by Oscar Heyman Brothers, circa 1960s

About the Item

Vintage sapphire and diamond cluster ring by Oscar Heyman Brothers. Set with a cushion shape old cut natural unenhanced Ceylon sapphire in an open back claw setting with an approximate weight of 11.45 carats, flanked by six rectangular channel set tapered baguette cut diamonds in open back half rubover settings with a combined weight of 0.80 carats, encircled by a cluster of seventy four round brilliant cut diamonds in open back grain settings with a combined weight of 1.80 carats. The total approximate diamond weight is 2.60 carats, to an elegant bombé cluster with intricate backholing and a pierced openwork gallery, conforming to the finger with tapered shoulders and flowing down to a solid D-shape shank. Marked platinum, maker's mark for Oscar Heyman Brothers, numbered '507968', American, circa 1960s, accompanied by American Gemological Laboratories report #CS54804. UK finger size L 1/2. Please note shipping to the United States of America requires the purchaser to fill out a CBP 5106 customs form before the item is shipped. This form is a legal requirement for any item over $2,000 which is being imported into the United States. One of the details the form requests is the purchaser’s social security number or importer’s number.
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