Item #: 172651 This is an authentic TIFFANY & CO 18K Yellow Gold Diamond Schlumberger Ring sized 51.5 or 6. This stylish ring is crafted of 18k yellow gold with an "X" shaped setting encrusted with .30 carats worth of diamonds. This is a lovely ring with the unforgettable look of Tiffany & Co! Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.