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Radiant Loose Diamonds
The radiant cut loose diamond was developed by Hennry Grosbard, who introduced this loose diamond shape in 1977. Until then, straight-edged loose diamonds (such as rectangles or squares) employed the step-cut technique. Unfortunately it tended to make the loose diamond look a little dull and glass like, since the parallel surfaces aren't able to proper reflect the light for that eye-catching sparkle.
However, Grossbard was able to ingeniously combine the step-cut technique with the brilliant technique. The brilliant often used with curved designs like round, marquise, oval loose diamonds, and pear loose diamonds would create triangular facets or numerous surfaces where the light would reflect at different angles. By taking the best of both worlds, Grossbard was able to make even straight-edged loose diamonds shine, unlocking a whole world of design possibilities for future jewelers.
Types of Radiant Cut Loose Diamonds
There are three possible types of radiant cut loose diamonds. There is the true square, the squarish, and the rectangular. Which one you choose is a matter of personal preference, or may be dictated by the setting of the jewelry.
Finding Quality Cut Radiant Loose Diamonds
Grossbard set very specific guidelines on how to combine the sparkle of a brilliant cut with the shape of a rectangular or square stone. It is a complicated process, and craftsman spend many years (and use very particular calculations) to decide how to cut a particular stone.
In order to guarantee that you are buying a high quality radiant cut loose diamond, be sure to verify if the stones have met the standards. For example, the carat weight must be evenly spread. (This also helps the stone appear a little larger than it really is.) The proportions must be correct. And of course, the final and most important test is of the stone's brilliance. Naturally, the loose diamond itself must be of high quality, with minimal inclusions and a high color grade.
How Radiant Cut Loose Diamonds Works
Grossbard closely studied light to understand how to maximize the radiance of loose diamonds. He realized that the dazzle is dependent on how much light penetrates the diamond, and is then returned to the eye.
So he began thinking about the movement or the patterns of the light inside the loose diamonds, and how to create as much surfaces so that it would be able to reflect from several angles. That is why he cut the loose diamonds to create several points of light, for a kaleidoscope effect. He made many strict mathematical and geometric specifications.
Design Considerations
The radiant cut loose diamond is versatile and can be used for engagement rings, diamond pendants, and earring studs. They are sometimes worn as solitaires, or may be combined with other stones. Radiant loose diamonds can also be quite breathtaking as small stones clustered around a band or a larger loose stone.
It can also be quite stylish to cluster several small different colored loose diamonds with a radiant cut. You can opt to pick loose diamonds of very close colors, arranged in a subtle spectrum. Or you can contrast stones of very different colors, creating bold and interesting patterns. Radiant cuts can also make excellent bracelets and brooches.
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