lapidary technique in which a stone is cut with flat sides (facets). Most commonly known on diamonds and transparent stones. The angles of the facets determine best reflection of light.

The process of polishing facets onto a stone.

The process of applying facets, or flat polished surfaces to a gemstone. The goal of a gem cutter, who creates the facet arrangement on a gemstone, is to create the most brilliance and best appearance possible for the gem in hand. When faceting colored gemstones particular attention must be given to how light reflection will affect the gemstones apparent color.