Brand: Tiffany & Co. Name: Tiffany & Co. Atlas Ring Common name: Atlas Material: 925Silver Item rank: Used item A Category: Ladies Size: 10.0 (10.0 JP / US 5.5)issue Actual size: Arm maximum width: 6 mm (0.24 in) Weight: 5.3 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.