What is a Radiant Cut Diamond?

Choosing a radiant cut diamond may be the best option if you want a diamond with dazzling brilliance and a high fire rating. Because of their distinct appearance and brilliance, it isn’t easy to detect any inclusions in these diamonds. Even though most radiant cuts are eye-clean, some are classified as I1 or higher. Their faceting creates the illusion of cracked ice, which helps conceal any perceived flaws. Compared to other diamond shapes, this type of cut offers several distinct advantages. Will discuss this further in the following section.

The radiant cut is a hybrid cut that combines a square or rectangular shape with the traditional round brilliant shape to create a unique and beautiful diamond. This cut enhances the color of the Diamond by creating a softer surface that has an emerald-like appearance, which helps draw attention to the Diamond’s color. Given that it is not a traditional diamond cut, it is frequently used for engagement rings. Given its versatility, this cut is an excellent choice for those who prefer square or rectangular diamonds.

Radiant Cut Diamond

The radiant cut diamond, famous since the 1980s, lives up to its name by being exceptionally radiant and brilliant. In 1977, Henry Gross bard created the radiant cut in the pursuit of combining the finest elements of the brilliant round cut and the emerald cut into a single design.

The radiant cut diamond’s brilliance is attributed to the 70 facets found in its pavilion and crown. The accuracy with which each facet is cut results in tremendous brilliance and fire. That of the round brilliant cut only surpasses the brilliance of the radiant cut.

The radiant cut diamond is a non-traditional, brilliantly symmetrical cut that blends the brilliance of a round with the purity of an emerald cut. The rounded edges of this loose diamond form allow it to shine in various settings, including engagement rings. When opposed to a princess cut, the faceting of a radiant cut gives it a flaming flare while preserving delicate, trimmed corners. Overall, the radiant Diamond combines some of the most desirable characteristics of other famous diamond forms.

The rectangular modified brilliant Diamond is another name for a radiant cut diamond. Described, these are the square diamonds of brilliant round stones. Radiant cut diamonds belong to the hybrid gemstone cut category, which refers to how the cut’s qualities resemble other stone forms, such as the cut’s beveled corners. The rectangular radiant cut diamond is an excellent choice for those who enjoy the emerald cut shape but prefer the sparkle of a round diamond. However, dazzling square diamonds are also available. The only difference between them is their length-to-width ratio. Because they catch more rough diamond color than other cuts, this diamond shape is also a popular choice for fancy colored diamonds. (If you’re considering an engagement ring with sapphires and diamonds.)

Like every other diamond form, Radiant cut diamonds have their own set of benefits and drawbacks. The following are some of the benefits of the radiant cut:

  • Excellent Brilliance, Fire, and Sparkle

Although not nearly as bright as the brilliant round cut, the radiant cut isn’t far behind. The radiant cut boasts extraordinary brilliance and fire because of its 70 facets in the pavilion and crown. If you want a non-round diamond with many sparkles, the radiant cut is a terrific option.

  • Larger Perceived Size Than Other Diamond Shapes

The radiant cut seems more significant than most other diamonds of the same carat weight, giving it a more substantial presence on your fiance’s ring finger.

The radiant cut’s face-up area is somewhat smaller than a round brilliant cut diamond of the same carat weight. The radiant cut’s long diagonal measurement, on the other hand, deceives the eye and makes it appear larger than it is.

  • Better Durability Than Other Square Diamonds

The radiant cut is frequently compared to princess cut square diamonds. Despite the differences in appearance (the princess cut is square, whereas the radiant cut is square or elongated), the similarities are apparent.

On the other hand, the radiant cut has one advantage over the princess cut: it is significantly more durable. Because radiant cut engagement rings have beveled corners, they are less likely to chip, making them an excellent choice if your fiance-to-be has an active lifestyle.

  • Excellent Value For Money

The radiant Diamond’s cutting method uses a substantial percentage of the original rough Diamond with very little waste. As a result, a loose radiant diamond will be less expensive per carat than most other diamond cuts. The radiant cut diamond is, in reality, one of the most cost-effective diamond shapes.

For example, a 1.01-carat radiant cut diamond from James Allen with VS1 clarity and H color costs $3,920. A round brilliant cut diamond with the same clarity, color, and carat weight costs $6,130, or over 56% more. You’ll be able to spend more of your budget on the engagement ring setting or a larger diamond if you choose a radiant cut versus a round brilliant.


Radiant diamonds have a modified brilliant-cut facet pattern for both the pavilion and the crown, giving them their high brilliance (the quantity of white light reflected in the eye or sparkle). Because cut is so significant to the brilliance of any diamond, especially the brilliant Diamond, a keen eye should be utilized when evaluating stones for purchase.

The GIA grades only brilliant round diamonds. A GIA certificate for a radiant cut diamond will not include a cut grade and hence will not reflect the Diamond’s actual appearance. When comparing loose brilliant diamonds, make sure you examine them thoroughly with your own eyes and, ideally, the eyes of an expert.

We provide guidelines for judging the cut of a Radiant Diamond as a general guideline.


Make careful to inspect the corners of a radiant, making sure they are even and not too wide—or too narrow—in width. The Radiant’s clipped corners provide support, but they must also be symmetrical to maintain the overall beauty of the piece of artwork.

For personalized assistance in selecting a high-quality radiant cut diamond, get in touch with one of our specialists today.

Excellent Very Good Good Fair Poor
Table % 61-69 57-60 or 70-72 54-56 or 73-74 51-53 or 75-79 <51 or >79
Depth % 61-67 59-58.9 or 70.1-74 54-56.9 or 74.1-79 54-56.9 or 74.1-79 <54 or >79
Girdle Very Thin – Slightly Thick Very Thin – Thick Very Thin – Very Thick Extremely Thin – Extremely Thick


The length to width ratio is found by dividing Diamond’s length by its width and indicates how proportional the Diamond is with its intended shape (square vs. rectangle). The length to width ratio of a diamond, for example, is 1.43 if its length is 5 mm and its width is 3.5mm.

The radiant diamond ratio you choose depends on what you feel to be the most aesthetically beautiful. Radiant length to width ratios typically run from 1.00 to 1.35, with the lower end indicating a square shape. For a more rectangular shape, the length to width ratio can be increased to 2.0.

. May find the length to breadth ratio of loose dazzling diamonds on the loose diamond page. This is displayed by the Blue Nile underneath the diamond pictures in the “Diamond Details” section, while James Allen displays it in the “Product Details” section.

You’ll notice that the ratios of the diamonds in this graphic fluctuate. The Diamond has a square shape at the lower end, 1.15, and a more vivid rectangular shape at the higher end, 1.35. Examine a variety of length-to-width ratios before settling on your favorite.


Clarity refers to a diamond’s cleanliness. In other words, it assesses how free of flaws and inclusions it is.

Clarity is rated on the following scale by the GIA:

  • Internally Flawless (IF)
  • Very Small Inclusions (VVS1)
  • Very Small Inclusions (VVS2)
  • Very Small Inclusions (VS1)
  • Very Small Inclusions (VS2)
  • SI1 stands for Small Inclusions.
  • Slight Inclusions (SI2)
  • Inclusions (I1)
  • Inclusions (I2)

The visual difference between two nearby classes, VVS1 and VVS2, is barely discernible with the naked eye.

Radiant is also cut with multiple facets and angles, giving them the appearance of crushed ice. James Allen’s Radiant Cut in a 14K white gold solitaire setting has the unusual cracked ice effect. Inclusions and defects are more easily camouflaged because of this feature. As a result, we typically propose radiant cut diamonds with a Clarity of S1 or S2 to guarantee you aren’t overpaying for a characteristic that will go unnoticed.

Above all, we recommend thoroughly inspecting a radiant cut Diamond for flaws and defects and enlisting the help of a professional.


It would help to look at Radiant Cuts for their color, cut, and clarity. Color rankings vary from D to Z, according to the GIA. The D grade denotes the clearest, colorless diamonds, whereas the Z grade denotes those with a notable yellow or brown tint.

Radiant Cuts have a slightly easier time distinguishing color contrasts than other diamond forms. Still, we usually recommend an H Color or better for Radiant Cut Diamonds, letting you spend your money on other things like cut quality, and an H grade appears white and colorless to the naked eye.

You should also check that your Diamond seems white compared to its setting. In a 14K yellow gold solitaire setting, this J Color Radiant Cut Diamond from James Allen, for example, appears colorless. You have color range flexibility depending on your choice, ensuring you focus time on the most crucial aspect: cut quality.


While numerous lab grading companies produce reports for Radiant Cut Diamonds, only a few are reliable. We’ve found that the GIA and AGS grade diamonds consistently and precisely, whereas other laboratories are dangerously inconsistent, based on our many years of experience.

We strongly advise that you only consider Radiant’s that have GIA or AGS certified. James Allen and the Blue Nile are two diamond vendors who frequently issue these certificates.

You should examine any diamond closely before making a selection and having a lab analysis. Lab reports do not predict Diamond’s appearance, and only you and an expert can determine actual attractiveness and appearance.

Bhumi Gems 4CT Radiant Cut VVS1 Moissanite Engagement Ring for Women, Wedding Ring, Halo, Solitaire Ring for Gift 925 Sterling Silver, Basket Set Accented Radiant Cut Moissanite Ring

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Do Radiant Cut Diamonds have a Larger Appearance? 

As discussed in the radiant cut’s advantages and disadvantages, radiant cut diamonds appear more significant than most diamond shapes of the same carat weight.

This is not a coincidence. In the 1970s, Henry Gross bard created the radiant cut to create a diamond cut that appeared as large as possible. His goal was to optimize each Diamond’s natural beauty rather than cut it to increase weight, which was the standard technique.

The radiant cut’s broad, shallow form allows more of the Diamond to be seen when it’s set in a ring, giving the impression of a larger stone. An ultimate result is a form that combines the brilliance of the brilliant cut with a bigger apparent size.

Is it True that Brilliant Cut Diamonds are More Expensive?

A particularly well-cut radiant can dazzle as brightly as a round diamond while costing a fraction of the price. Because of their low cost, they’re also famous for non-engagement jewelry such as diamond studs and pendants, which can be relatively economical.

Once you’ve gotten into the game, you’ll undoubtedly discover that radiant cuts appear far less expensive than any of the other diamond types. And you will not be mistaken. They are one of the cheapest diamond cuts available since the cutting process uses a more significant percentage of the original Diamond rough, resulting in very little waste during the process.

What does a Dazzling Diamond have to Say About you, Exactly?

In a setting with a baguette or round side diamonds, the Radiant is a very versatile choice that looks equally gorgeous in either configuration. Jennifer Anniston has a famous flair that is appropriate for her ring. According to American Vogue, ‘Women who choose brilliant cuts tend to be effervescent and gregarious.

Radiant cut diamonds have a silhouette shape similar to an emerald shape. Still, their facets are cut more similar to that of round diamonds. Radiant cut diamonds are more expensive than round diamonds. This means that Diamond’s appearance has an effervescent sparkle to it, which hypnotizes individuals who come into contact with it.

Why is Emerald Cut Diamonds Less Dazzling than Round Brilliant Cut Diamonds?

Radiant cut diamonds have a silhouette shape similar to an emerald shape. Still, their facets are cut more similar to that of round diamonds. Radiant cut diamonds are more expensive than round diamonds. This means that Diamond’s appearance has an effervescent sparkle to it, which hypnotizes individuals who come into contact with it.

Even though this form typically has 58 facets, emerald-cut diamonds are less dazzling than other shapes because of the steep cuts. The emerald cut emphasizes the clarity of the Diamond rather than its glitter, which makes it a more valuable investment. Purchase a diamond with high polish and outstanding symmetry grades to optimize the shine of the diamond you purchase.


The length-to-width ratio is another significant contrast between a radiant cut and a princess cut diamond. Radiant cuts are extended, diagonally formed diamonds that fool the eye into thinking they’re rectangular. As a result, brilliant diamonds appear to be bigger than square diamonds. A princess cut, also a square diamond, is frequently likened to a radiant cut. On the other hand, the latter has more facets and creates more heat. A bow-tie effect can be seen in a well-cut dazzling diamond. The mismatched facets cause this effect. A well-cut radiant can emphasize the bow tie look; however, should avoid stones with bow ties. It’s probably not worth the money if it’s too dark. A well-cut radiant will have a consistent glitter. The setup style determines whether a radiant is sliced for a bow-tie effect or not.