Oscar Heyman 1.80ctw Blue Sapphire, 0.75ctw VS1-VS2/F-G Diamond Solid 18K Yellow Gold Ring - This captivating ring was made by Oscar Heyman, and was finely crafted of solid 18k yellow gold. Since the inception of the brand in 1912, the jewelry house has manufactured pieces for names such as Tiffany & Co., Van Cleef & Arpels and Cartier, eventually becoming known in the jewelry industry as "The jewelers' jeweler". While working for Cartier in 1969, the Heyman brothers designed and crafted the pear shape diamond necklace for the 68 carat Taylor-Burton Diamond. The ring has an aesthetically pleasing, clean and modern design and is embellished with approximately 1.80ctw genuine blue sapphires channel set into two center rows. The ring is then finished with two outer rows adorned with approximately 0.75ctw genuine VS1-VS2/F-G brilliant round cut fiery white diamond accents. The ring is signed with the Oscar Heyman Bros. hallmark along with the unique serial number. Ring size: 7.75 (WEIGHT: 10.4 grams) PLEASE NOTE, PRE-AUCTION SALES: GWS reserves the right to sell any Lot(s) through a negotiated transaction at any time prior to the conclusion of the auction. If a Lot is sold through a negotiated transaction, it will be withdrawn from the auction. All pre-auction purchases will receive free, overnight, insured shipping. Please email gwsauctions@gmail.com to submit a pre-auction offer.