This is an authentic TIFFANY & CO Platinum Diamond Mosaic Pendant Necklace. This chic necklace features a platinum 16.25 inch length chain with an octagon shaped pendant finished with diamonds, .60ctw. Add sparkle to your wardrobe with this beautiful diamond pendant necklace from Tiffany & Co! Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.