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Radiant Cut Diamond Engagement Rings Expert's Ultimate Guide

Radiant cut engagement rings for women

The selection of an engagement ring is a memorable and mesmerizing experience because it signifies your commitment and dedication towards your spouse and your duty to a relationship. Most couples make their engagement rings pretty and excellent, which indicates their dedication. Nothing wrong with that.

If your fiancee insists on a diamond engagement ring or maybe you desire a surprise proposal, there is a choice, depending on intentions. If you're looking for a wide and more brilliant appearance, then no one is the right choice for round-cut diamonds. While you have the most gorgeous and stylish appearance, radiant cut diamonds are the perfect choice.

This article shows what to look for to make radiant-cut engagement rings excellent and beautiful. In this article, you can learn about the radiant cut diamond's meaning, its reasons, and the best quality of color, clarity, carat, and cut. In addition, you will be aware of the L/W ratio of radiant diamond cut and its engagement ring designs.

A radiant cut diamond is a rectangular shape with internal facets and flat table surfaces reflecting brilliance. So, you can select this diamond shape as your bright future sign and offers it to your love partner. The sharp edge of the radiant diamond shape offers a tangible and excellent appearance, making them more acceptable for any ring style as halo, solitaire, vintage, and unique.

Buying a radiant cut diamond ring is a wonderful experience; after all, you solely or maybe take the help of someone selecting your love sign that remains a love symbolism. There you have to consider three factors that help to get a better deal from the jeweler or seller. The facts include 4cs (color, clarity, carat, and cut), proportions, and symmetry or polish grades.

Let's figure out the radiant cut diamond meaning, which helps you understand it more deeply.

What is Radiant cut diamond?

A radiant cut diamond combines emerald and round cut with a rectangular shape with brilliant-cut facets. The rectangular shape of the radiant diamond is similar to a traditional emerald-cut diamond. While a brilliant cut facet in a radiant diamond refers to the round cut diamond. The emerald and round cut diamond's hybrid symmetrical model is used to make the radiant diamond distinctive.

When a diamond has sharp cornered curving edges from crown to girdle anatomy with 70 numbers of facets, it is the radiant diamond cut. The radiant diamond facet distribution is as follows: 25 facets on the crown, eight facets placed on the girdle, and the remaining 37 facets appear at the pavilion.

The radiant cut diamond appearance of vertical and horizontal side

The symmetrical formation and fancy cut make the radiant diamond cut the best alternative to emerald and round diamonds. Suppose you want a modern, charming look other than a traditional emerald-cut diamond. In that case, the perfect choice is radiant cut because of the unique and integral formation of facets.

Furthermore, a radiant cut diamond carries two forms: rectangular (similar to an emerald cut) and square (similar to a cushion cut). Due to the length and cropped curving edges, it's best to select a rectangular rather than a square shape. A square-shaped radiant cut diamond is a good choice as an alternative for cushoin cut diamond.

Why Prefers Radiant Cut Diamond Engagement Rings?

Radiant cut diamond is the hybrid symmetrical model for emerald and round cut diamonds that makes it ideal for engagement ring selections. Someone who is looking for brilliance as round diamond but prefers a rectangular shape as emerald, then radiant cut diamond is the perfect choice.

Also, this rectangular diamond shape has cropped edges which is absent in the round or heart cut diamond. Having more cropped corners helps the light reflections ability smooth and is ideal that every buyer wants to experience.

Also, other reasons mentioned below indicate that you are shopping for a radiant cut diamond engagement ring for your love partner.

  • Offer brilliance and shining appearance all time
  • The length that looks even bigger in 1 carat than a round or heart
  • Modified brilliant cut internal facets
  • Flat table surfaces that slightly remove blemishes effects
  • 15­° angled curving edged crown anatomy
  • Provide a best monetary value than other rectangular-shaped diamond
  • Have 70 numbers of brilliant facets
  • Sustain a length-to-width ratio
  • Versatile in all fancy colors

These reasons influence you to choose a radiant cut diamond for engagement rings. It's your call to select this rectangular diamond shape as your love sign that has been fixed in the rings. You can customize the radiant diamond as per your requirements but keep in mind the mentioned reasons remains as same.

The Acceptable 4cs In Radiant Cut Diamond Ring

For evaluating and inspecting the diamond characteristics, the 4cs are used, and it contains color, clarity, carat, and cut. In the radiant cut diamond ring, you have to choose the best diamond 4cs grades that offers a brilliant and shining appearance on the hands of your fiancee.

Before making the decision to shop for a radiant diamond ring, you must select the ideal color, carat, clarity, and cut grade according to ring designs and preferences.

The 4cs of diamonds help to know the diamond's reflective ability in different circumstances and it provides a criteria for deciding a price. Have a look the ideal color grade of the radiant cut diamond.

Select F to K Color Grade Diamonds

The radiant diamond prefers the F to K color grade because these grades still give the appearance of the rainbow and white. Also, the F to K color-graded radiant cut diamond is free from color variations which not affects your white gold or platinum band's appearance.

Selecting the better color grade in the radiant diamond cut ensures experiencing a natural light's resonations from treated reflections. Otherwise, you'll choose yellow gold for your ring's band, then choose an L to N color grade diamond with a small to medium yellow color variation.

Radiant diamond's color grade chart

"Keep in mind the color grade should be complies with the band's metal tone for experiencing a exquisite appearance as a love sign. The color grade of diamonds influences the overall costs even with the radiant diamond cut."

A diamond color grade shows which type of hue resonates from the stone's anatomy. From D to Z scale, the diamond color grade decided as colorless to fancy colors (yellow color), respectively. You can choose a fancy color in radiant cut diamonds in brown, yellow, blue, pink, and orange.

Select 1 to 4 Carat Weights For Radiant Cut Diamonds

The radiant cut diamond is rectangular and longer, so there is no mandatory rule to choose a 3 or 5-carat weight. You can select this diamond shape between 1 to 4-carat weights because it looks big than other diamond shapes. Getting more carat weights in a radiant diamond means you get longer and more cropped corners that reflect light reflections.

The carat weight selection for an engagement ring is the most important task because it decides how much big the diamond looks on the ring and offers a modern appearance to the wearer. As a result, you can choose a 1 to 4-carat weight radiant diamond cut for brilliant reflections and a captivating appearance.

Radiant cut diamond's carat weights chart

"The diamond carat weight indicates how big your stone looks on the engagement ring. As per industry norms, diamond carats vary from 0.05 weight and should be selected according to that. The carat weight selection affects the diamond's cost as smaller stone prices are cheaper than a big stone."

When you choose a different carat weight than the actual, an L/W ratio will affect the overall appearance. For example, a radiant diamond's L/W ratio should be aligned with the carat weights.

A 1-carat radiant diamond requires length but less width, so select it according to the ideal Length-to-width ratio. While 2 to 4-carat radiant diamonds have sufficient length and width according to your requirements.

Choose VVS to VS Clarity Grades In Radiant Diamond

In radiant diamonds, the best clarity is counted as the VVS to VS grades, where the inclusions and blemishes don't appear so much on the anatomy. Due to less inclusions on the anatomy, the light reflections for radiant diamond cut don't affect and give constant light reflections.

Selecting a VVS to VS clarity grade radiant diamond for engagement rings has three reasons: cheaper costs (subject to compare with IF or FL clarity), offers non-stop light reflections, and is readily available. In radiant cut rings, you want to give a pretty wearing experience that fulfills from the VVS to VS clarity grade diamonds, for that is no need to choose only IF or FL clarity.

If you strongly desire to choose exquisite clarity grades for your 2-carat radiant diamond solitaire ring, choose Internally Flawless or Flawless clarity grades. The cost of these clarity grades is +20-40% more than VVS diamonds. Aside from the cost perspective, IF and FL clarity radiant diamonds are free from single blemishes and inclusions.

Radiant cut diamond clarity chart

"Remember that diamond clarity is responsible for brilliance reflections throughout the stone's anatomy. So, it could be selected to keep in mind that the ring's shining reflections are affected. The clarity grade plays a key role in deciding the diamond's overall price. Higher-clarity graded diamonds are not easily available, and they are mostly made-to-order, so you may have to pay more."

When you're selecting accurate and coherent clarity grades for the ring styles, then it provides a beautiful experience that makes bonding more trustworthy between spouses. In other words, this rectangular-shaped diamond's clarity should be selected according to the ring style.

For example, for a couple who is looking for a stylish radiant diamond solitaire engagement ring, the best clarity grade range should be IF to VVS. While a radiant diamond three-stone or halo-designed ring, VVS to VS clarity is a sufficient choice for an elegant appearance.

Excellent to Good Cut Grade Is Perfect Choice For Radiant Diamond

When you select only radiant diamonds for the engagement ring, the cut grade should be Excellent to Good. The depth and girdle thickness in these cut-graded diamonds exists in their actual conditions. Having the prominent depth surfaces from the table anatomy and properly aligned girdle thickness reflects the lights in an ideal way.

That's why Ouros Jewels recommends selecting Excellent and Good cut grade radiant cut diamonds rather than Fair and Poor grades. Preferring the Excellent to Good cut grades diamonds will benefit the buyers by offering instant light reflections and providing a luxury wearing experience.

A radiant diamond knows for its luminosity and length, so the cut should be selected in the best grades. For lengthened symmetrical structure, the radiant cut diamond demands a proper pavilion depth and exact girdle placements available in Excellent to Good cut grade.

Radiant diamond's cut grade chart

"Diamond cut is part of 4cs grades, and you should select one that complies with your ring designs. The cut grade decides how quickly the brilliance is reflected from the diamond. Ensure you choose the correct cut grade for your diamond engagement ring, and remember it affects the prices (subject to cut grades)."

Proportions To Select In Radiant Cut Diamond Rings

Radiant diamond proportions to know

The proportions for the radiant cut diamond rings should be selected according to the ring designs. After the 4cs grades, the radiant diamond ring's appearance depends on the dimensions that tell how much beautiful your ring looks. Those proportions are defined below, and they should be in the better grades that help the reflections of the lights.

  • Table surface(%)
  • Depth(%)
  • Pavilion angle(°)
  • Crown angle(°)
  • Girdle thickness

In the chart, proportions are described for radiant cut diamond engagement rings designs to better understand it with proper knowledge.

Carat Size

Ring Styles



Pavilion Angle

Crown Angle

Girdle Thickness

0.50 - 0.99


64-73% 61-76% 29-34° 38-46.5° Medium to Slightly Thick

1.00 - 1.99


64-69% 65-69% 28-33° 41-48° Slightly Thick

2.00 - 2.99


63-72% 68-70% 31-34° 39-46° Medium To Slightly Thick

3.00 - 3.99

Solitaire Accent

66-73% 67-69% 30-35° 40-45° Thick

4.00 - 4.99


61-63% 68-70% 34-36° 42-44° Medium To Slightly Thick

These proportions are called dimensions, too, so they can be selected according to your ring designs and preferences. The mentioned proportions could be changed from the actual. You can take further assistance from your jeweler for selecting ideal proportions in radiant diamond rings.

Ideal Length-to-Width Ratio In Radiant Diamond

The length-to-width ratio indicates how much the diamond's length is big than its width. Also, it is called as L/W ratio for the diamond. The radiant diamond shape is rectangular so that it can be coherent to the width. As a result, the best L/W ratio for radiant diamonds should be between 1:1 - 1.35:1 because it will neither lengthy nor broad.

The importance of the length-to-width ratio defines how quickly and easily the lights are reflected from the diamonds. As a result, when you choose a rectangular or square-shaped diamond, consider choosing the ideal L/W ratio. The cost of different L/W ration diamonds should be slightly different, so ensure you're paying the right price.

Radiant diamond's length-to-width ratio chart to be consider

If you're urged to select a square-shaped radiant diamond, then this L/W ratio should be 1:1.10 to 1:1.15. While the elongated and rectangular (proper in length and width) shape in radiant cut diamond then, the ideal range of L/W ratio is between 1.30:1 - 1.45:1.

In addition, if you want to know the diamond's L/W ratio, then here we mentioned a formula, so you can use it to understand how much the length of the stone is ideal compared to its width. For example, this 3.04-carat radiant diamond cut lab-grown diamond's length is 9.76 MM, and the width is 7.11 MM, so the length-to-width ratio is 1.37:1.

The Diamond's Length-to-Width ratio


Diamond's Length In MM

Diamond's Width In MM

Symmetry And Polish Grades For Radiant Cut Diamond

For radiant cut diamond's better and natural appearance, the symmetry should selected without any partiality in price and combo offers. The diamond symmetry will indicates the accuracy of the facets placements on the anatomy. Also, from the diamond symmetry the reflection ability will be acknolwedge.

Radiant diamond’s length and flat table surfaces demand exact placements of the facets that is decide from the diamond symmetry. So, choose it according to the carat weight that you opt for. We below mentioned the diamond symmetry grade to be selected according to the carat.

Carat wise Radiant cut diamond's symmetry and polish grade selection

Otherside, the polish grade of the radiant cut diamond should be selected according to the ring designs and carats weights. The diamond polish is another important part to consider when select the center stone for the engagement rings. 

diamond polish suggests how carefully the diamond shape given in the process has been done through the various stages. In radiant diamond, the polish grade should be in the Excellent to Very Good scales.

Here is the chart to select polish and symmetry grades according to the carat wise in the radiant cut diamonds. Thus, consider selecting it for a better appearance in the radiant cut diamonds. Also, not the remarks which could be more helpful to get a brilliant look from this rectangular-shaped diamond.





0.49 - 0.99


Very Good

Consider L/W Ratio.

1.00 - 1.99

Very Good


4cs Important.

2.00 - 2.99



4cs and dimension to focus.

3.00 - 3.99

Very Good


L/W Ratio in ideal ranges.

4.00 - 4.99



Crown and pavilion angle in exact placements.



Very Good

Depth is important.

Radiant Cut Engagement Rings

The ring designs represent the different formations and structures that define them from other designs. When you consider the best color, clarity, carat, and cut grades for the radiant diamonds, note down the ideal L/W ratio. Now it's time to know which ring designs will suit your rectangular modified brilliant cut diamond.

Here, some most popular and selected diamond ring designs are mentioned. Have a look.

  • Solitaire
  • Accent Solitaire
  • Halo
  • Bridal Set Split Shank
  • Toi et Moi
  • Dainty
  • Three-stone
  • Unique

These ring designs for radiant cut diamonds have their own definitions and specialties, making them distinctive. All these rings are available in gold, silver, and platinum metal tones and cross or infinity bands. You can add your personal touch by asking your jeweler to customization the ring design. After all, you're offering your fiancee an endearment and commitment sign.

1-Carat Radiant Diamond Three-stone Ring

A three-stone ring design represents three terms "Love, Support, and Promise," so with the pink-colored radiant cut diamond, it looks more beautiful on your spouse's hand. This ring will definitely offer your emotions and feelings towards her. Selecting a three-stone ring indicates a strong attachment between your spouse and you.

With 1-carat diamond rings, the appearance will look more versatile, and it's a price-effective choice for engagement rings. We know the carat weights of diamonds influences the overall costs, but here with the rectangular-shaped radiant diamond, you can feel a stress-free wearing experience. Because it still looks big than a 1-carat round and Asscher cut diamond.

VVS clarity grade pink radiant cut three-stone ring for women

Pink color releases brilliance lights that refer to romance and love, so if you need more love from your partner, you can select this ring with white gold metal. Here, a 1.05 pink radiant cut lab-grown diamond is used in this fancy-colored ring. The pink colored radiant diamond has VVS clarity with a 1.44:1 L/W ratio which means it's a rectangular shape.

The accent stones are baguette cut with step-cut facets and 0.45 TCW with EF color and VS clarity grade. Also, the metal tone for the ring's band is 14KT white gold, and the ring size is 5.00 US. You can request the customization in gold metal tone from yellow or rose and re-resize option from us.

Shop this Colored Diamond Ring For Your Love

2-Carat Solitaire Radiant Cut Diamond Ring

The solitaire rings define the importance of the love partner in life because these ring designs count as the remover of the solicitude. As a result, it has been selected as an engagement ring with gold and proper prong settings. That represents how much two individuals are connected with each other and committed to complete duty towards a relationship.

The color, carat, cut, and cut grade should comply with the wearer's appearance in the solitaire diamond rings. So, for these designed engagements ring, a 1-carat radiant cut is a good choice, but if you need a special look from that and consider the better proportions, then a 2-carat radiant diamond is the perfect selection.

2 carat radiant cut solitaire engagement ring

"For 2 carat radiant diamond cut solitaire engagement ring, select VVS clarity and G color grade because it can make the appearance more excellent. The cut grade should be Excellent to Very Good, which offers you the brilliance as you expect."

The suitable gold metal tone for a 2-carat radiant solitaire ring is 18KT yellow gold, which gives an overall shinier look. While there is a choice to pick 10KT or 14KT gold purity according to your spouse's preference. Considering the prong settings in rings when you select a solitaire design that holds the diamonds and stones with a better grip.

Buy Solitaire Ring For Your Engagement

3-Carat Diamond Halo Split Shank Ring

If you are looking for a special and gorgeous ring design for your engagement ring, then "Halo" is the right choice. In the halo rings, the gemstones or diamonds are engraved in the basket formations that offer great luminosity. Also, in the halo style rings, the center stone is larger than other accent stones, making this design different from solitaire and paves design sets.

Regarding the best carat weight for the halo diamond rings then, you can opt for up to 3-carat weights with the radiant cut. Because if you choose more than 3 carats weighted radiant cut diamond for a halo ring design, you might compromise with the length-to-width ratio, or you have to pay more.

Radiant cut diamond ring with 3 carat weights

"Talking about the best clarity weight for a radiant diamond halo ring, it should be VVS to VS grades that have less diamond inclusions on the anatomy. The price of the VVS to VS clarity radiant cut diamond is cheaper than an IF or FL clarity grade. The perfect cut grade for a radiant halo ring is Excellent to Very Good because it has proper depth and girdle thickness."

Shop Halo Diamond Engagement Ring

Elongated Radiant Diamond Ring

Mostly, radiant cut diamond exists a rectangular shape because it's manufactured with that shape naturally. But, a you want to express his gartitude towards the spouse in form of the ring then an elongated radiant diamond is a enough choice for the your search. In this radiant shaped diamond, the combination of brilliant facets and width available of round and Asscher cut.

When selecting a elongated shape in radiant diamond than a it's natural rectangular shape keep in mind the length-to-width ratio. Because it complies with the L/W ratio for offering a proper and elite looks in the ring. Thus the elongated form of the radiant diamond will giving the best appearance when it selected according to the L/W ratio.

Elongated diamond ring

"Consider the best L/W ratio as 1.29:1 to 1.40:1 for an elongated diamond shape. With that, select VVS to VS clarity, G color, up to 3-carat weights, and Excellent cut grades for desiring the beautiful wearing experience. Also, pick diamond symmetry in excellent grade that correctly gives the best light reflection properly."

Also, the suitable gold metal for the elongated diamond shape should be 18KT white gold because it matches the colorless grade of the stone. There is an option to select 10KT and 14KT gold purity if you want variations. While you select fancy-colored radiant cut diamonds for your engagement rings, then consider the yellow and rose gold tones, which are available in 10KT, 14KT, and 18KT.

Buy White Gold Engagement Ring

Square Shaped Radiant Diamond Ring

A solitaire accent ring made with the consideration to provide a stunning wearing experience from the symmetrical position of the stones to the metal selection. When you're thinking of giving an engagement ring as a present for a wedding and future life, a solitaire accent ring is an excellent choice, especially with the square radiant cut diamond.

In this ring design, the center stone looks bigger because it has a much carat weight than other stones that are placed on the band. The rectangular shape of the radiant diamond, the flat table, and the internal modified-brilliant cut facets provide a distinctive appearance from other diamonds. Thus, you can opt for a radiant diamond for a solitaire accent ring.

Radiant diamond cut halo engagement ring

But, if you need a diamond with more cropped corners and need an identical appearance as the princess cut, then a square-shaped radiant diamond is available to complete your expectations. The light reflection of the square-shaped radiant diamond is still the same as the rectangular shape. The square radiant cut's cost should slightly differ from the rectangular shape.

"If thinking of selecting a square-shaped radiant diamond ring, pay attention to choose FL clarity (you can opted VVS clarity in the absence), prefers D to F color grade, select a 1.50 to 3.00-carat weight, and demand an Excellent to Very Good cut. Also, insist on the diamond certification for making the purchase authenticated."

Ensure that you select a white gold metal for your colorless radiant-cut diamond ring to match the brilliance of its band. Need an exquisite appearance from a ring's band; then no one is better than a platinum metal. While for a colored radiant diamond, freely select yellow and rose gold that aligns with the ring's overall appearance. In the gold metal purity, 10KT, 14KT, and 18KT are available, and the lowest purity is cheaper than the higher one.

Shop Beautiful Engagement Ring

Radiant Diamond Ring In Yellow Gold

A radiant cut diamond ring with yellow gold looks superb and identical because of the shining reflections from the band. When you want to select a yellow gold for your engagement ring, we suggest a solitaire ring design because it increases the overall appearance, even with the elongated or square-shaped radiant diamond. The actual decision depends on you.

Yellow gold is a metal tone with 10KT, 14KT, and 18KT purity. The pure form of gold is yellow gold because, in its making, no additional other metals are added except to maintain its sustainability and durability.

Ask your spouse about your preference before selecting 14KT or 18KT yellow gold for an engagement ring. Otherwise, if you're planning a surprise proposal for her, then wisely take a decision.

Radiant cut diamond yellow gold ring

"Consider checking the purity stamp and hallmark on the band for assurance of a yellow-gold ring. Meanwhile, you can ask for the jewelry certification, which the jeweler has to provide for an authentic and transparent transaction between you and them. Double inspect the yellow gold material from taking your ring to your local jeweler and ask them to check the materail of the gold."

Shop Gold Engagement Ring

*Keep in mind the all rings are made with a lab grown diamonds which is identical to natural diamonds.

Which Cost Is Ideal To Pay For Radiant Cut Engagement Rings?

There's no rule or principle to pay the ideal price for radiant cut engagement rings; it depends on you how much you're willing to spend. The cost of the radiant cut diamond ring fluctuates from ring designs to metal tone and purity selection. But, if you insist on knowing the ideal price, we recommend paying $1500 to $3400 for a radiant cut lab-grown diamond ring.

In addition, the price for the rectangular-shaped diamond depends on the color, clarity, carat, and cut grades you happily choose. For example, a 1-carat radiant cut lab-grown diamond solitaire ring price is $1000 with VVS clarity, E color, and Excellent cut grade. Otherside, a 3-carat radiant lab diamond halo design ring could cost $3400 with VVS clarity, D color, and Excellent cut grade.

So, ultimately, how much you pay to buy a beautiful, radiant diamond ring depends on your intention behind offering a ring, your love partner's preferences, and the quality you choose. That's all.



Buying radiant cut engagement rings could be easier to consider the facts and points mentioned in this article. Most importantly, the 4cs as color, clarity, carat, and cut grade affects the appearance of these rectangular-shaped diamond, so consider the best grades that you opt for an engagement ring.

After that, pay more attention to choosing the proper dimensions and proportions subject to the ring designs which you prioritize for your spouse. Here, you can easily ask the support and help from your jeweler. They will guide you in-depth with the proper understanding of your needs. Meanwhile, you can contact us for additional help.

The symmetry and polish grades are the backend factors that affect the cost and appearance of your square or rectangular diamond shape ring. So, also prioritize them if you're ignoring them to understand it's little effective for a better appearance.

While for a radiant diamond engagement ring, consider designs that offer a different value and appearance. For example, solitaire design is the best choice for offering a brilliant and elegant experience to a love partner. While a three-stone ring design refers to "Love, Romance, and Promise," so select this design to remove the distance between you and your spouse.

Other ring designs, such as a solitaire accent, halo, dainty, Toi et Moi, and unique rings, still provide a gorgeous look. Consider the ring design according to your love partner's preference, intention, and budget.

If you want to buy a customized engagement ring in the radiant cut diamond, visit our customized page. You are requested to tell us all the requirements, and we can make the rings more optimum with our craftsmanship.

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