This is an authentic TIFFANY Platinum Diamond .40ct Elsa Peretti Diamonds By The Yard Pear Shape Necklace. This platinum necklace hangs right at choker length with a bezel set diamond that weighs approximately .40 carat. Truly is an unforgettable piece, only from Tiffany & Co. Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.