Radiant Cut Engagement Rings | Lab Grown Diamond | IGI

The radiant cut is a rectangular or square stone with cropped corners and brilliant-style faceting underneath. It was created in 1977 specifically to give a step-cut outline the fire of a round brilliant, and it is the reason a radiant sparkles where an emerald cut of the same shape does not. Every Ronora radiant is a real CVD lab grown diamond, VVS clarity, D-E-F colorless.

What is the crushed ice look?

Radiant cuts scatter light into many small flashes rather than a few large ones, which reads as a shimmering, granular sparkle often described as crushed ice. Some buyers prefer it to the bolder, broader flashes of an emerald or asscher cut; others find it busier.

How does a radiant compare to a cushion?

Both are softened rectangles with brilliant faceting. A radiant has straight edges and sharp cropped corners, so it reads more angular and modern. A cushion has curved sides and rounded corners, so it reads softer and more antique.

Frequently asked questions

Does a radiant hide inclusions well? Yes. Its scattered faceting disguises inclusions far better than a step cut, though Ronora sets VVS regardless.

Which length-to-width ratio is best? Around 1.0 for a square radiant and 1.3 to 1.5 for an elongated one, which flatters the finger more.