The development of this cut dates way back. This shape is almost 200 years old. The name, however, is quite modern. In the past, they called this shape the ‘mine cut’, a square diamond with rounded corners. The mine cut thanked its name to the Brazilian diamond mines. The older cushions have 57 or 58 facets - 33 crown facets and 25 pavilions. The shape we know today has an extra row of facets and often counts 61 facets. However, the number of facets for this cut is not set in stone. Therefore, a polisher can change the shape a bit and hide inclusions more efficiently. This makes the cushion cut one of the most brilliant cuts of all square and rectangular shaped stones.
Differences with other diamond cuts
The cushion is a beloved but not one of the most well-known diamond cuts. Therefore, people often mistake it for other diamond cuts. In particular with the Asscher cut and the Radiant cut.
The cushion compared to the Asscher cutBecause of its square shape with rounded corners, people easily confuse a cushion cut with an Asscher cut diamond. However, the cushion belongs to the group ‘brilliant cuts’ and the Asscher to the group ‘step cuts’. Diamond shapes that belong to the brilliant group have a number of variations. They can differ in the number, shape, and arrangements of the facets. Step cuts, however, have linear shaped facets that are parallel to the girdle (the stone’s widest part). Another example of a step cut diamond, besides the Asscher cut, is the Emerald cut. The cushion cut (right) is often mistaken with the Asscher cut (left)
The cushion compared to the radiant cut
Another shape the bespoke cut often gets mixed up with is the radiant cut. Although the radiant also belongs to the brilliant cut group, it differs a bit from the cushion cut. The radiant cut has a rectangular outline and rectangular (straight) corners, whereas the corners of a cushion shape are rounded.