TIFFANY & CO., SCHLUMBERGER, YELLOW SAPPHIRE AND DIAMOND RING Containing one cushion mixed cut yellow sapphire measuring approximately 11.65 x 10.85 x 7.50 mm, the shoulders with butterfly motifs containing eight pear brilliant cut diamonds weighing approximately 1.75 carats total and two round brilliant cut diamonds weighing approximately 0.15 carat total. Mounted in yellow gold and platinum. Stamp: TIFFANY&CO. SCHLUMBERGER STUDIOS 750 PT950. 8.15 dwt. Accompanied by a Tiffany & Co. inner and outer box.