Authentic Vintage Tiffany and Co. Diamond Ring by Paloma Picasso. This ring is from an estate collection and I believe that this design has been retired. The ring is made of Sterling Silver and is fully marked Tiffany and C0. 925 and Paloma Picasso on the inside. The heart design holds a genuine diamond. Overall the ring measures about 5/8 inch long by about 3/4 inch wide from side to side. Ring Size: about 4 (could be resized by your jeweler or ask me about using mine before shipping). Express and International shipping available. Buy Now, this is an estate item and once sold it cannot be restocked.