This is a beautiful vintage black jasperware ring made by Wedgwood set in sterling silver. The ring is a long oval with a classical figure in white, most likely a goddess. It is marked on the back Wedgwood Made in England, though this is hard to read due to the black material. The shank of the ring has English hallmarks for sterling silver and the maker's mark JW.
It is a size 5 1/2 and it is in very good condition.