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Which Cut Has the Most Brilliance?Īs we’ve covered in our guide to the 4Cs, a variety of factors contribute to a diamond’s brilliance and fire. There are some elongated cushions out there, but it’s not a wide selection. The cushion cut, on the other hand, usually has a length to width ratio in the 1.0-1.09 range, leading to a more square-like diamond shape. Radiant cut diamonds come in a large variety of different length to width ratios, ranging from square to quite strongly rectangular.
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You can see these curved, smooth corners in the image below of this cushion cut diamond from James Allen:īy looking at the shape of a diamond’s corners, you’ll be able to tell if it’s a cushion cut or radiant cut diamond.Īlthough this doesn’t apply to every diamond, there’s often some difference in the length to width ratio of radiant cut and cushion cut diamonds. Meanwhile, cushion cut diamonds have rounded, curved corners, giving it a shape that’s part rectangle and part circle. You can see these corners in this radiant cut diamond from James Allen, which is pictured below with a diagram showing its shape and dimensions: This gives the radiant cut a more geometric, angular shape. Radiant cut diamonds have beveled corners that are typically cut at a 45° angle. This is the difference in corner between these two different diamond shapes. However, there’s one key difference in design and cut that becomes apparent when you look at the radiant and cushion cuts more closely. They both have similarly large tables, rectangle-like outlines and a facet pattern that produces a high degree of brilliance. Like many other diamond shapes, radiant cut and cushion cut diamonds can look quite similar when they’re first viewed. We’ve listed these differences - as well as key features the radiant and cushion cuts have in common - below. However, there are several key differences between them that can often make one shape a better choice than the other.įor example, can you tell the difference between this beautiful radiant cut from Blue Nile or this cushion cut stunner? Do you notice a difference in sparkle? Do you have a preference between the two? Learn More.Ĭan’t decide between a radiant cut and cushion cut diamond? At first glance, these two diamond shapes can look quite similar.
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