The technique of decorating the surface of a hard material (e.g. metal or a gemstone) from the front by incised lines, characters, patterns, portraits. etc., cut into the surface. When the decorationon a gemstone is so made, it is an intaglio.Engraving on gold was done from the third millennium BC, with crude tools of flint, bronze, copper and later iron; in Germany in the 15th century it was done with a dry-point needle.In modem times engraving is done by hand by means of a sharply pointed steel tool (called a burin 01 graver) while the metal is held on an engraver's block. Craftsmen skilled in calligraphy have doneengraving of monograms and inscriptions.
Engraving

Engraving
The technique of decorating the surface of a hard material (e.g. metal or a gemstone) from the front by incised lines, characters, patterns, portraits. etc., cut into the surface. When the decorationon a gemstone is so made, it is an intaglio.Engraving on gold was done from the third millennium BC, with crude tools of flint, bronze, copper and later iron; in Germany in the 15th century it was done with a dry-point needle.In modem times engraving is done by hand by means of a sharply pointed steel tool (called a burin 01 graver) while the metal is held on an engraver's block. Craftsmen skilled in calligraphy have doneengraving of monograms and inscriptions.
References
From: An Illustrated Dictionary of Jewelry, autor: Harold Newman, publishers: Thames and Hudson



