The remarkable Blue Heart Diamond was found at the Premier Mine, South Africa in 1908. This 30.62 carat heart-shaped, brilliant cut blue diamond was faceted by French jeweler Atanik Eknayan of Paris in 1909-1910 from a 100.5 carat piece of rough. The stone was purchased by the French jeweler, Pierre Cartier in 1910. Cartier then sold it to a Mrs. Unzue of Argentina in a lily-of-the-valley brooch in 1911. It was next acquired by Van Cleef & Arpels in 1953 and sold to a European family in the form of a pendant. In 1959, it was purchased by Harry Winston who mounted it in its present platinum ring setting, surrounded by 25 round brilliant cut colorless diamonds with a total weight of 1.63 carats. The Blue Heart Diamond is approximately 2/3 the size of the Hope Diamond, but its heart-shaped brilliant cut and lively blue color have made it one of the collections most popular gems. The Gemological Institute of America (GIA) graded the Blue Heart as a natural fancy deep blue diamond with a clarity grade of VS-2.
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