A cushion cut is a square outline with rounded corners and a brilliant facet plan. It developed from the old mine cut.
In more detail
Before mechanical bruting, nobody could make a diamond truly round, so early brilliants were cushions. Whether a cushion shows a bow-tie depends on its facet design, so published lists disagree.
On a grading report
No GIA cut grade.
Related terms
- Old mine cut: An old mine cut is an antique cushion-shaped diamond of the 1700s and 1800s. It has the Peruzzi's 58 facets, cut more evenly by hand.
- Fancy shape: A fancy shape is any diamond outline other than round, such as oval, pear, marquise, cushion, princess or emerald.
- Bow-tie: A bow-tie is a dark band across the belly of an oval, pear, marquise or other elongated stone. It is not an inclusion or a color: the facets there send little light back to the viewer.
- Peruzzi cut: The Peruzzi, or triple cut, is a cushion brilliant of the late 1600s with 58 facets. Its 32-facet crown has 8 bezels, 8 stars and 16 upper halves.