Size: US: 9.5 / EU: 61 / JP: 19 Name: Tiffany & Co. Ring Unisex 750 18K YG Accessory 19 Size 72343700 18K Yellow Gold Unisex Used: 2000753246903053 Material: 18K yellow gold Diamond 0.36ct Size: Approximately 8 (Size) Ring inner diameter: 1.8 cm (0.71 in) Ring width: 0.2 cm (0.08 in) Notation size: 19 Shape Number Weight: 3.9 g Accessories: Storage box x 1 Storage bag x 1 Comment: Slight scratches It appears to be around a size 10 in terms of wearability. But please note that there are individual differences in how it feels.