![]() While it’s clear how a squared radiant cut diamond differs from a round brilliant, the differences between the radiant style and other square or rectangular cuts are less obvious. How does the radiant cut differ from other similar cuts?Īs mentioned above, the radiant cut is eerily similar to other diamond cuts. These beveled corners reduce chipping and create a more contemporary look that’s excellent for active lifestyles. Regardless, each radiant cut diamond has “beveled” or cut corners that are reminiscent of an Asscher cut stone. Speaking of shape, a radiant cut diamond may sport a square or rectangular silhouette depending on the style. Unlike the mirrored facets of other elongated shapes, the “crushed ice” facets of the radiant cut can mask imperfections just like other diamond shapes with brilliant cuts. This increase in light performance leads to a significant boost in fire, brilliance, and scintillation, producing a square diamond that rivals a round brilliant! Combining the clean lines and slim silhouette of emerald-cut diamonds and the brilliance of round gems, Grossbard invented a diamond shape that can withstand most wear and tear and keep on sparkling.□Ī radiant cut features 70 facets crafted with the utmost precision for optimal light play. To do so, he used the work of Basil Watermeyer-father of the Barion cut-to produce an octagonal cut style that optimized the brilliance of a square diamond.Īs a result, Grossbard created a diamond cut that offered a modern take on the "Old World" charm of the emerald, round brilliant, and even Asscher cuts. To make the search process faster, we highlight such diamonds in our diamond price curves.The radiant cut style is relatively new, as it’s only about 40 years old! Henry Grossbard, a New York diamond cutter, crafted the first example of a radiant cut in the 1970s. Searching for a long mains radiant with our recommended proportions will enrich your results for beautiful diamonds. Only 1 in 7 radiant diamonds have the long mains pavilion pattern. Radiant diamonds with the “long mains” pavilion facet pattern have better light performance and a larger visual spread than the “short mains” pavilion facet pattern. Length is what gives a rectangular diamond its sense of size. Our radiant L/W ratio recommendation is on the higher end to ensure a rectangular appearance. Although square radiants exist, you might instead consider a cushion or princess, which are traditionally square. Rectangle is the traditional radiant shape. Based on the heatmap, our recommended range of depth 67-70% and table 64-68% (highlighted in green) is based on diamond cutters’ preferences. ![]() Brighter blue indicates more diamonds having that specific depth and table combination. Radiant Depth, Table, and L/W Ratio Proportionsīelow is a heatmap showing the counts of depth and table combinations for radiant diamonds available online at James Allen and Blue Nile. Short mains radiants have been cut to maximize carat weight, hiding carats in a more bulbous pavilion where you can’t see it. For example, the long mains 1.01 E VS1 (6.65×5.21mm) is much larger than the short mains 1.01 E VS1 (6.04×4.85mm). For radiant diamonds of the same carat weight, long mains look on average ~5% larger than short mains. Short Mains Radiant Pavilion Facet Pattern Short Mains Radiant 1.01 E VS1ĭiamonds with long mains also have larger spreads (visual surface area) compared to short mains. Thus, the long mains pattern shows more scintillation and has better light performance. In contrast, the long mains pattern has larger facets that produce bigger flashes of light (shown below). Short mains patterns introduce extra facets that chop up the light, often resulting in a watery look. The image shown below is the most common short mains pattern, but there are many other types. In contrast, there are many “short mains” pavilion facet patterns in which the “X” doesn’t extend all of the way to the edge of the diamond. You can also check the main pavilion facets of the diamond itself. There’s only one long mains radiant pavilion facet pattern, so this is the only image you need to remember. In the “long mains” pavilion facet pattern shown below, the pavilion facet mains (the “X” highlighted in red) extend all of the way to the edge of the diamond. Of the many radiant pavilion facet patterns, you should only look for one: the “long mains” pattern. Radiant diamonds exhibit a lot of variation in how they’re cut, demonstrated by the diversity of pavilion facet diagrams shown on diamond grading reports. We automatically highlight such diamonds in our price curves to make the search process easier. ![]() Searching for radiant diamonds using these criteria will enrich your results for well-cut diamonds with optimal light performance and a larger than average spread. Optimal Radiant Diamond Proportions Depth
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