Schliff

Schliff is a German noun meaning the act of grinding, polishing, or finishing a surface, as well as the resulting smooth surface itself. It is derived from the verb schleifen, to grind or sharpen, and is used across industries that finish materials such as metal, glass, ceramics, and gemstones. In general, schliff denotes both the process of material removal and the quality of the finished surface.

In gemology and jewelry, Schliff refers to the cut and facet arrangement of a gemstone and its light performance. Common terms include Brillantschliff for a brilliant-cut gemstone and other style-specific schliffe used to describe the facet pattern, proportions, and polish. The schliff directly influences brilliance, color appearance, and value. In metalworking, glassmaking, and related crafts, schliff describes the grinding and polishing steps that yield a smooth, reflective finish. The process typically advances from coarse to fine abrasives, culminating in a high-polish surface.

Etymology and usage: Schliff stems from the German verb schleifen, with the noun form indicating either the act of grinding/polishing or the result of that process. While primarily used in German-speaking contexts, the term appears in international jewelry and manufacturing literature as a loanword or in translated form to describe cut and finish quality.

Variations and related terms include phrases such as Brillantschliff and other compound forms that specify particular cut styles or finishing characteristics. Schliff also appears as a surname of German origin.