Cushion Diamonds


What is a Cushion Diamond?

The cushion-cut diamond is a modern evolution of an antique cut. A square shape with brilliant cut facets, the cushion cut features rounded corners. Descending from the old mine cut, cushion diamonds have been brought up to date with brilliant cut facets, deliberately designed to maximise fire and scintillation. With its softly rounded shape, a cushion cut diamond resembles a pillow - hence its name.

How Many Facets does a Cushion Diamond have?

What Makes a Cushion Diamond Special?

Antique diamonds are undoubtedly charming, but with fewer facets and often lower colour they can’t boast the same incredible sparkle as modern brilliant cuts. Enter the modern cushion cut, which has been steadily perfected since the 1920s into the wonderful cushion cut we know now. The resulting cut has all the graceful allure of an antique stone with the brilliance of a modern diamond. Even in the simplest of rings designs a cushion cut exudes vintage glamour. The modern cushion cut is particularly prized for its fire. Fire refers to those magical rainbow flashes you see scattering from a diamond when the light hits. A well cut cushion diamond emits an intense and beautiful fire.

How do you Know if a Cushion Diamond is Well Cut?

First, we consider the visual impact of the stone - how does the fire, brightness, and scintillation appear? Second, the design - how well proportioned is the diamond? Finally, we look at the craftsmanship - how skillfully has the diamond been cut and polished? While cushions are not given a cut grading, there are some suggested parameters for a well-cut stone, including;

Length to width ratio: the length to width ratio of a diamond measures how proportional it is. Diamonds which fall within these parameters will be most pleasing to the eye, with a more distinct and even shape. Look for a cushion diamond with a length to width ratio of 1.00 to 1.05, which will look perfectly square to the eye.  But here, there is room for personal choice. A ratio of 1.10 or greater becomes an elongated cushion cut, which you may find just as beautiful.

Table: the table is the largest, central facet of a stone. The table needs to be large enough to let lots of light into the diamond, but not so large that the upper facets don’t have room to sparkle. Look for a cushion diamond with a table ratio between 60 - 65%

Depth: a diamond’s depth is the top-to-bottom measurement of a diamond, from its table to culet. The depth ratio compares this measurement with the overall width of the stone. The depth affects the visual balance of a diamond and its brilliance. If a stone is too shallow or deep the light will not refract properly, escaping through the base of the diamond instead of the top. Look for a cushion diamond with a depth ratio between 65 - 69%.

Choosing a Diamond Cut Grade

diamond cut guide

Choosing a Cushion Diamond Colour

diamond colour guide

Choosing the Clarity of a Cushion Diamond

diamond clarity guide

Is a Cushion Cut the Diamond for You?

If you’ve always coveted an antique diamond, the cushion cut is bound to steal your heart. The flexibility of the cushion shape allows you to choose the stone that really speaks to you, whether that’s a classic square shape or an elongated cut. Whichever mount you choose for your diamond, the exquisite antique styling of a cushion is bound to shine through. Balance tradition and modernity with a simple solitaire, or lean into vintage-inspired luxury with a sparkling halo.