Briolette Cut Edwardian Garland Motif Pendant Suspending a Briolette Cut Diamond. Briolettes are drop shaped, multi faceted stones. They are unique in the sense that they lack a girdle, a feature all other gemstone cuts have and by which they are usually set....
Bruting Bruting is a process in diamond cutting that establishes the girdle outline. Once the height and width of the diamond are determined, it is then shaped along the girdle edge by grinding it against another diamond on a specially designed, high-speed lathe. This...
Calibré Calibré refers to gemstones cut precisely to fit a specific design. Usually, calibré cut stones are rectangular or square but can be any shape necessary to precisely complete a design. Calibré-Cut Diamond, Ruby and Black Onyx Spider Web...
Cameo A cameo is a glyptograph or bas-relief carving, (the opposite of the technique used in intaglios) usually depicting a scene or portrait, for use in jewelry and decorative arts. When layered materials such as banded agate or shell are used, the foreground or...
Carbuncle A large almandine garnet that is cut en cabochon. These deep purplish-red garnets were popular in Victorian jewelry. Victorian Garnet and Diamond...
Cleavage Definition The ability of a material to split along a certain plane or planes with weak atomic bonding. A crystal structure is built up out of bonded atoms. These atoms lie in a regular repeating three-dimensional array. Although regular, the bonds and...
