Cameo (/ˈkæmioʊ/) is a method of carving an object such as an engraved gem, item of jewellery or vessel. It nearly always features a raised (positive) relief image; contrast with intaglio, which has a negative image.

What does a cameo ring mean?

A cameo is a hard or precious gemstone—often agate or onyx—carved in relief so that the figures project from a supporting background. The most common motif of antique cameo jewelry depicts a profile of a face or mythical creature.