A beautiful piece of aqua seaglass found in Hossegor, set in sterling silver and finished off with a hammered band which represents the ripples of the ocean.  
Size U.K. M 1/2
If you are unsure of your ring size or you need to convert your size from a different size system, you shoukd find everything you need to onow here; https://www.oceanboheme.co.uk/measure-your-ring-size
The jewellery comes in a cotton gift bag and is delivered in plastic free packaging.   5% of profits goes to support marine conservation charities.