This is a Lab created Ruby Wedding Band in 925 sterling silver. Stone size: 3x1.5mm marquise cut + 2mm round cut Band width: 1.4mm. Band thickness: 1.2mm This ring is marked 925 I accept custom making order.Please contact me if you need this service. This ring is closed ring.If you want a matching band,you can ask me custom make it. Friendly reminder:This ring is not provided to return or exchange service, unless the quality problem. For special customized products,since it was custom made only for you,thank you for your understanding. For all the jewelries,there is a 14 days money back guarantee.You can return it in the time frame without any questions.However there maybe handcrafted fee & shipping fee deducted from the original payment as it is handmade. Ruby Stacking Ring, July Birthstone Wedding Marquise Silver Crown Anniversary Ring