Single-Cut

A single-cut diamond refers to an old-style cut that features only 16 facets in total – 8 on the crown (the top portion of the diamond) and 8 on the pavilion (the lower portion).

Simulant

Simulant Any material that is meant to look like or imitate a diamond, but is not a natural or synthetic diamond

A diamond simulant is any material that is designed to mimic the appearance of a diamond but is not a natural diamond or a synthetic diamond.