It is the gem of plane faces or facets.
A coldworking process in which sections of glass are cut-away from a piece of solid glass using a lapidary wheel. Once finished a symmetrical, gem-like design is revealed, distorting the underlying pattern or image.
The surface cut of a Gem, Glass or Crystal Bead.
Decorative surface cut into sharp-edged planes in a crisscross pattern to reflect light.
gemstone carved with a regular pattern of many planes, or " facets".
A piece that has been cut with facets
A gem of plane faces or facets.