Item detail Item A Material: Sterling Silver 925 Weight: 3.42 g Size: 10 (10 JP / US 5.5)International size: 50 US size: 5.5 3.7 mm (0.15 in) Item detail 1837 Ring Tiffany & Co. 1837Stamp was done Na Na -Ring is.boxPouch Polished . Item N: butNa Na S: butNa Na A: but Na B: C: Na but but Na • 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.