Intaglio (gem)
Caracalla as an intaglio in an amethyst
Intaglio ( Italian : carving, stone cut ) is the name for a gemstone with a deeply cut, pictorial representation. In contrast, there is the raised cut cameo .
The intaglio technique is commonly used on seal stamps and the stones of seal rings so that the imprint appears raised.
See also
Web links
Commons : Intaglio - collection of images, videos and audio files