These are an authentic TIFFANY Platinum Diamond Schlumberger Lynn Pendant Necklace. This gorgeous necklace is crafted of platinum and features a signature Schlumberger "x" pendant with four sparkling diamonds weighing approximately .21 total carat weight, hung from a fine platinum chain. Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.