This is a stunning platinum solitaire engagement ring by Tiffany & Co. The ring is set with sparkling GIA certified round brilliant cut diamond that weighs 3.40ct. The color of the diamond is H with VVS1 clarity. The top of the ring measures 11mm in diameter. The ring is signed TIFFANY&Co. PT950 3.40CT and weighs 10.1 grams. The diamond has "T&Co 575251231" inscription. The ring is size 6 1/2 but it can be resized.