size info EU 53 (ISO / International standard)-US 7-JP 13 (Diameter = 17mm) Thank you very much for seeing it. This is an extremely simple and clean design with an elegant finish to highlight the beauty of the stone. This is a parallel sale with other stores. We always check stock, but please understand that it may be sold out due to the time difference. Although we pay close attention to the production, the details may differ from the photos because they are handmade one by one. Please note that point in advance. Material: Silver950 / Smoky Quartz Size: No. 13 (cannot be resized) Non-returnable Plating is not applied to enjoy the original texture of the bullion. If you want to avoid discoloration, wipe it gently with a soft cloth after use, store it in a bag with a zipper, etc., and sometimes clean it with a special cloth or scouring powder. At that time, please be careful so that the polishing powder does not adhere to the stone. Although it is produced with consideration for strength, please note that it is delicate. Since natural stone is used, there may be scratches and chips derived from nature. I hope you enjoy it as a natural beauty. Please be careful when using or storing, as dropping or hitting may cause scratches or chipping of the stone. There is a risk of getting caught in clothing on the design. Please be careful when using in combination with delicate clothing. If you have any other requests or questions, please feel free to contact us. <Prohibited matters> Purchase for imitation by resale or sales purpose is strictly prohibited.