This is a free-size ring made of 925 silver, colored a vibrant blue with enamel. It has been about 40 years since I purchased it in the UK, and it has been stored at home without ever being used. This is a product of DUST jewellery company from Scotland. Weight: Approximately 3.8g Size: Free size (currently around size 13) There is an engraving on the back. A dedicated case is not included, but it will be placed in a plastic case for shipping to prevent damage. It seems like it would make a lovely accent piece for casual occasions! Please also take advantage of our 10% discount for combined purchases! Thank you for looking.