Brand: Tiffany & Co. Name: Tiffany & Co. Harmony Ring 0.19CT Common name: Harmony Material: Platinum 950 Item rank: Used item A Category: Ladies Size: No. 4.5 Actual size: Maximum width: 3.6 mm (0.14 in) Arm maximum width: 2.6 mm (0.10 in) Stone used: Diamond 0.19CT Weight: 2.7 g Accessories: (no accessories) Detailed Polished. • Ring size listed will usually be international sizing, not US, unless otherwise stated. You accept this description upon purchase. Please use the Ring Size Chart.