Authentic Tiffany & Co. Paloma Picasso Graffiti X Pendant Necklace. The pendant is stamped with Tiffany & Co., Paloma Picasso signature, 925. Features a delicate cable chain accented with a polished sterling silver "X" embellished with a single round natural diamond at the center. Some tarnish and scratches due to age. Perfect for adding a touch of sophistication to any outfit. Update 6/22, just had professionally cleaned.