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About the Radiant Diamond Cut

Jeweler Henry Grossbard discovered the radiant diamond cut in 1977. Coming from generations of jewelers, he received a patent on it, which his family then held for 17 years before any other jewelers were allowed to create this diamond cut as well. It was the first patent issued for any type of diamond cut.

The radiant diamond cut is similar in shape to the princess and the emerald cuts while still allowing for the brilliance of the more modern diamond cuts of the time. Its trimmed, blocked corners made it unique. The radiant diamond cut brought back some of the public love for square and rectangle cuts.

This diamond cut is popular for engagement rings and other types of bridal jewelry. It has about 70 more uniform facets and makes for a great centerpiece with three or more surrounding smaller diamonds or precious stones. This diamond cut also combines the method for cutting a round diamond and an emerald diamond, borrowing traits from both cuts to create a brilliant and square cut. Mr. Grossbard called this method a hybrid brilliant step cut.

The radiant diamond cut lends itself well to colored diamonds, though clarity within the color is still important. This diamond cut reflects and refracts light in a heavier fashion, making it easier to forgive flaws and imperfections. The facets are designed in a way that gives off a look similar to that of cracked ice, particularly on engagement rings and bridal jewelry. Additionally, the signature blocked corners are less susceptible to chipping or breaking. This aspect of the radiant diamond cut makes it a popular and smart choice for engagement rings because the corners do not need any specific kind of support.

While the ratio is up to the buyer, an ideal example of length to width would be 1.3-1.5:1. The difference will vary depending on the desire for a rectangle or a square. A jeweler will utilize more of the diamond if the proportions are an even ratio, which will also give a higher buyer value.