Glyptogography, or glyptics, is the art of carving or engraving on what?
Engraved gem "cameo" in its strict sense, to denote a carving exploiting layers of differently coloured stone. The activity is also called "gem carving" and the artists "gem-cutters". References to antique gems and intaglios in a jewellery context will almost always mean carved gems; when referring to monumental sculpture, counter-relief, meaning the same as "intaglio", is more likely to be used. Vessels like the Cup of the Ptolemies and heads or figures carved in the round are also known as "hardstone carvings". Glyptics or "glyptic art" covers the field of small carved stones, including cylinder seals and inscriptions, especially in an archaeological
Seal carving or calligraphy normally has one or more seals. Seal carving Seal carving, also seal cutting, or zhuanke in Chinese (), is a traditional form of art that originated in China and later spread to East Asia. It refers to cutting a design into the bottom face of the seal (the active surface used for stamping, rather than the sides or top). Also known as seal engraving. In the Shang dynasty seals started being used in the government offices, where they represented authority and power. During the Shang and Zhou dynasties the materials for seal making were mainly animal bone, copper