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Radiant Cut – How To Grade Radiant Cut Diamonds

Updated on May 27, 2024

With over 40 years of expertise, Diamond Registry’s CEO and owner, Nissan Perla, is your trusted guide in the diamond-buying world. Recognized by prestigious publications like The Washington Post and Chicago Tribune, Nissan’s extensive knowledge and experience in evaluating, buying, and selling diamonds are unparalleled. Our commitment to integrity, transparency, and delivering exceptional value ensures that you make an informed decision when acquiring your timeless treasure. Choose Diamond Registry for personalized guidance, education, and a curated selection of the finest quality diamonds, backed by decades of industry expertise and dedication to your satisfaction.

Table of Contents

Published on February 23, 2024
Updated on May 27, 2024

If you are looking for a diamond that is brilliant and rectangular, the best option will be to opt for a radiant cut diamond. These diamonds are usually rectangular or square. The corners of the diamond are truncated and the outline is similar to that of an emerald cut. However, the brilliance of radiant cut diamonds is much better than emerald cut diamonds. Many refer radiant cut diamonds as mixed cut diamonds, as this cut has characteristics of other diamond cuts. Picking a good radiant cut diamond is not an easy task. Here are a few tips that will tell you how to grade and buy a radiant cut diamond.

What makes us your trusted partner

With over 40 years of expertise, Diamond Registry’s CEO and owner, Nissan Perla, is your trusted guide in the diamond-buying world. Recognized by prestigious publications like The Washington Post and Chicago Tribune, Nissan’s extensive knowledge and experience in evaluating, buying, and selling diamonds are unparalleled. Our commitment to integrity, transparency, and delivering exceptional value ensures that you make an informed decision when acquiring your timeless treasure. Choose Diamond Registry for personalized guidance, education, and a curated selection of the finest quality diamonds, backed by decades of industry expertise and dedication to your satisfaction.

Table ratio

Table ratio for a good radiant cut diamond has to be around 60 to 70 percent.

Girdle thickness

The best option will be to get a stone that has very thin or slightly thick girdle thickness. Avoid stones that have extremely thin or extremely thick girdle thickness.

Total depth

The total depth of the stone has to be about 60 to 65 percent of the girdle

The culet

For good quality radiant cut diamonds, the culet has to be non-existent or very small.

Symmetry and polish

Always pick stone shat have good symmetry and polish, as a poorly polished and asymmetrical facets stone will seriously impair the brilliance and look of the diamond.

Color

If you are planning to use the diamond in a white setting (white gold or platinum), the recommended color grade to be used is F, G and H. If it is a yellow gold setting, you can opt for a lower color grade like a, I or J color grade.

Clarity

Radiant cut diamonds with FL or IF clarity will be very expensive. As radiant cut diamonds have good brilliance, you will be able to find an eye clean stone even with a low clarity stone such as VS2, Sl1 or Sl2.  

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Diamond Registry provides you with a diamond price list which shows an average of the current market pricing trends for wholesale certified loose diamonds.

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Nissan Perla

Nissan Perla has over 40 years in the diamond industry and is the CEO and Owner of Diamond Registry since 1979. Nissan is recognized as one of the talented experts in the diamond world and has been mentioned in publications such as The Washington Post, Chicago Tribune, The Time Out, Sassy HK, and more.

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Client Reviews

Rebecca Schott
Rebecca Schott
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Nissan, David and his team were extremely accommodating, understanding and patient with our purchase. They took the upmost care to find the best solution for our needs and went above and beyond normal ‘customer service’ standards. I have absolutely no qualms recommending their products and services. Both were absolutely flawless. I will continue to sing them praises and will most definitely purchase from them again in the future. Thank you again!
Gershom Menachem
Gershom Menachem
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Great team of diamond experts who show personal care for the client’s needs and aftersales service. They really go the extra mile to make it happen no matter the challenges ahead. Rush orders, international shipping, upgrade service, jewelry repair, large diamonds, small items, precious stones. Very honest and open information to the clients. You will feel like talking to a friend.
Thom P.
Thom P.
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Bought a beautiful stone here for an engagement ring. I was a little apprehensive since you’re buying something unseen. But Cid made it easy. In fact, Nissan, the owner also gave a call to make me more comfortable. They sent me the stone to take to a local jeweler with only my Amex in case I bailed on them.
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