- Brand Name Tiffany & Co TIFFANY & Co. - Model name 1837 Narrow Ring - Size (cm) Size: 13 (13 JP / US 6.5).5 Minimum width: 0.4 Other sizes: approx. 4.5 g - Accessories Bag - Material Silver 925 About the condition (rank)** N: S: Unused items. Items on display. And items that we judge to be similar. SA: Clean item with little or no signs of use A: Item in good condition with little use AB: Item with some use. marks. Or scratches B: Item with scratches. Stains. And signs of use BC: Item with noticeable use. marks. Or scratches C: Item with a difficulty that is said to be junk • Ring size listed will usually be international sizing. Unless otherwise stated. Please use the Ring Size Chart for conversion.