The cushion cut has a square or rectangular shape with rounded corners, resembling a pillow. They are a great, cost-effective alternative to Round diamonds, as they are similar in appearance and almost as brilliant.

As one of the oldest diamond shapes, the cushion cut has evolved a lot over the years. The two main categories of cushion diamonds that are on the market today are the modern Cushion Modified Brilliant, and the more traditional Antique Cushion Cuts. Among the Cushion Modified Brilliants are two main subcategories - Crushed Ice and X-Factor.

Crushed Ice Cushions

This is the most popular variation of the modern cushion cut, and makes up about 98% of all cushions on the market. This variation is so prominent because it produces the least amount of lost carat weight during the cutting process.

X-Factor Cushions

When viewed face up, these diamonds appear to have an “X” through their center. They differ from Crushed Ice cushions in the length of their 4 primary pavilion facets; in X-factor cushions, these facets are longer, which creates the X shape and also contributes to added brilliance. More carat weight is lost when cutting X-factor cushions, but what many lack in carat, they make up for in the intensity of their brilliance. Since they are more rare and more brilliant than Crushed Ice cushions, they are generally more expensive.

Antique Cut Cushions

Antique Cushions display a uniformity of white light in their brilliance. They are unique, rare, and very brilliant. Because they have the highest carat weight loss in their cutting process of all the cushion shapes, this variation is not the most cost-effective. However, if you are looking for most intense brilliance in your cushion cut diamond, this would be your best choice.

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Length-To-Width Guide

ExcellentVery GoodGoodFairPoor
SQUARE 1.00 - 1.031.04 - 1.051.06 - 1.08> 1.08
RECTANGLE 1.15 - 1.201.10 - 1.14
or
1.21 - 1.30
1.10 - 1.14
or
1.21 - 1.30
1.08 - 1.09
or
1.31 - 1.50
< 1.08
or
> 1.50

QUALITY - excellent

SQUARE:
1.00 - 1.03
RECTANGLE:
1.15 - 1.20

QUALITY - very good

SQUARE:
1.00 - 1.03
RECTANGLE:
1.10 - 1.14 or 1.21 - 1.30

QUALITY - good

SQUARE:
1.04 - 1.05
RECTANGLE:
1.10 - 1.14 or 1.21 - 1.30

QUALITY - fair

SQUARE:
1.06 - 1.08
RECTANGLE:
1.08 - 1.09 or 1.31 - 1.50

QUALITY - poor

SQUARE:
> 1.08
RECTANGLE:
< 1.08 or > 1.50
Shop Excellent Cut Cushion Shop D - G Cushions Shop FL - VS2 Cushions Shop Cushion Diamonds
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