Brand: Tiffany & Co. Name: Tiffany & Co. 1837 Lock Ring Common name: 1837 lock Material: 925Silver Item rank: Used item A Category: Ladies Size: Issue 9.0 Actual size: Maximum width: 12.2 mm (0.48 in) Arm maximum width: 3.7 mm (0.15 in) Weight: 3.5 g Accessories: (no accessories) Detailed Polished. Th is now light. • 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.