![elongated radiant cut diamond ring elongated radiant cut diamond ring](https://lcrings.com/wp-content/uploads/2020/07/7.11.20joey08.jpg)
Learn More.Ĭan’t decide between a radiant cut and cushion cut diamond? At first glance, these two diamond shapes can look quite similar. These proportions guarantee the best light return and the most sparkle.Īlso check to see that the table is centered right in the middle of the stone, that the facets are symmetrical and well balanced, and that the corners are cut evenly so that each side is a mirror image of the other.We get commissions for purchases made from our affiliates through links in this article. An ideal depth percentage is 61-67%, so about a third of the measurement of the stone’s total diameter. An ideal table measurement is 61-69% - therefore, about two thirds of the entire width. These are industry standard measurements that show us the percentage a given measurement (the size of the table, or the total height of the stone in this case) takes up out of the entire width of the stone. When evaluating the cut of a radiant diamond, see if the retailer can tell you the table percentage and depth percentage. A poorly cut diamond won’t retain light very well, and the stone will look dull and empty. Some of the light will be sent back at the viewer (this is called “brilliance”) and some of it will break up into rainbow hues of spectral color (this is called “dispersion” or “fire). In a well cut diamond, light will enter the surface of the stone and ricochet off the diamond’s many facets. It’s what takes the raw optical properties inherent in the rough stone and essentially splits them apart into a cascade of light and sparkle. In general, cut is the most important factor when it comes to determining a diamond’s beauty. That means it’s up to the buyer to compare diamonds and see what makes them glow. Like other fancy cut diamonds, radiant cuts don’t receive a formal cut grade on diamond grading certificates.
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Once you’ve narrowed down the diamond of your dreams, you can look at the four diamond quality factors: cut, color, clarity, and carat weight. Avoid the “grey area” between 1.05 and 1.15 – these not-quite-square diamonds tend to look a bit awkward and unbalanced. You’ll need to examine different diamonds with different length to width ratios to get a sense of what shape is right for you. For an elongated radiant cut, 1.15 to 1.35 is the most popular. Square cut radiants are best in length to width ranges of 1:1 to 1.05:1. When you first start looking for your new radiant cut diamond ring or pendant, it’s helpful to first narrow down the size ratio that you’re looking for. Your best bet is to search reputable online vendors with high-quality photos and accompanying diamond certificates, such as James Allen and Blue Nile. Radiant cuts are specialized (what the GIA calls a “fancy shape”) and harder to find in jewelry boutiques than standard round brilliants. If you’ve decided to choose a radiant cut diamond for your engagement ring, you might find yourself going on a bit of a treasure hunt.