Engraved gem
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An engraved gem, frequently referred to as an intaglio, is a small and usually semi-precious gemstone that has been carved, in the Western tradition normally with images or inscriptions only on one fa
Roman intaglio portrait of Caracalla in amethyst, once in the Treasury of Sainte-Chapelle. At some point it was adapted by adding an inscription and cross to represent Saint Peter
Relief cameo of a Roman prince. Perhaps 14th century.
Antelopes attacked by birds: cylinder seal in hematite and its impression. Late Bronze Age II (maybe 14th century BC), from Cyprus in the Minoan period, following Near Eastern precedents.
Reclining satyr, Etruscan c. 550 BC, 2.2 cm wide, agate. Note the vase shown "sideways"; it is characteristic of early gems that not all elements in the design are read from the same direction of view.
Cameo glass
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Cameo glass is a luxury form of glass art produced by cameo glass engraving or etching and carving through fused layers of differently colored glass to produce designs, usually with white opaque glass
The Portland Vase, about 5–25 AD
First-century Roman vase excavated from Pompeii
The other side of the Portland Vase
Satyr giving grapes to the infant Bacchus, first century