Item #: 1859124 Year: 2019 This is an authentic TIFFANY Platinum Diamond Blue Sapphire Schlumberger Sixteen Stone Ring 55 7.25. The ring is crafted of platinum, and features 'X' motifs between blue sapphires and approximately .59 total carat weight of diamonds. Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.