A gem cut featuring a crown only, with no table and no pavilion. It is an antique diamond cut and is sometimes used for very dark-toned colored gems like almandine garnet to allow more transmitted light through the stone.
A gemstone cut with a flat base and typically 24 triangular facets. Very little stone is wasted with this cut, but it is not nearly as reflective as the brilliant cut. The rose cut is also referred to as a "rosette" cut.
An early style of cutting diamonds, probably originated in India. The base (back) is usually flat and the top (front) is slightly dome-shaped and covered with a varied number of triangular facets that terminate in a point, much like a shallow sided pyramid.
The rose cut (also called the rosette cut) for diamonds was invented in the 17th century and its used continued until the 18th century. The rose cut has a flat base and triangular facets (usually 24). This cut has little wastage of stone, but is not nearly as reflective as the brilliant cut, which was invented later.
An early style of cutting that is thought to have originated in India and to have been brought to Europe by the Venetians. In its most usual form, it has a flat, unfaceted base and a somewhat dome-shaped top that is covered with a varied number of triangular facets and terminates in a point. The rose cut is now used primarily on small diamonds.