This is the "Forever Ring" from Tiffany & Co. Which is made of platinum and set with diamonds. It is a piece of jewelry that gives off a beautiful sparkle and gives an elegant look to your hands. Brand Tiffany & Co. Forever Diamond Ring Material Engraving Platinum diamond (engraved Pt950) Size No. 5 Maximum width 2 mm (0.08 in) Thickness 1.8 mm (0.07 in) 2.9 g Accessories Item details It has been polished and is in good condition.