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18 Karat Gold, Star Sapphire and Diamond Ring - photo Sotheby's

Centered by a round star sapphire measuring approximately 15.2 by 9.7 mm, flanked by eight small round diamonds, size 4, signed Yard. Estimation: 15,000 - 20,000 USD

Sotheby's. Important Jewels. New York | 07 févr. 2013 www.sothebys.com