An 18K yellow gold and sapphire ring, Tiffany & Co. Schlumberger, "Double Coil" designed as an 18K gold double coil ring 13.50mm wide, terminating in cabochon sapphires measuring approximately 4.00 and 4.50mm in diameter. (17.1 dwt.; Size: 7) Provenance The Estate of Marguerite Whitney, Manhattan, New York. About Jean Schlumberger French designer Jean Schlumberger brought his talents to Tiffany in 1956; he created some of the world’s most fantastical and recognizable jewels during his time at the house. His most exceptional designs are known for their whimsy thanks to his clever use of gemstones and natural images. Please note that all information provided such as weights, grades, color, clarity are approximate and the opinion of the jewelry department of Freeman s, unless otherwise stated. Overall condition: Surface scratches, needs polishing, solid ring. Signed " Tiffany & Co. 750 Schlumberger" All items are sold as is on the day of the sale. Please note; all gemstones were measured and graded in their settings unless otherwise noted. Laboratory reports may be published, but do not guarantee the information provided, but rather are to inform potential buyers as to the findings of these reports. Some results provided by different laboratories may vary in their findings.