Petite Diamond Engagement Ring in 18k Yellow Gold Blue NilePetite Diamond Engagement Ring in 18k Yellow Gold Blue Nile

Best Carat Weight for Radiant Cut Diamond Rings


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HomeDiamond AdviceDeciding Where to Buy a DiamondBest Carat Weight for Radiant Cut Diamond Rings

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The best carat weight for radiant cut diamond rings is probably between 1.5 and 2 carats. Radiant cuts are deeper than other cuts, so your stone may -depending on the proportions - appear smaller when face up. If you want some flash - but not too much - then a 1.5 to 2 carat stone is the best carat weight for your radiant cut diamond ring.

In addition to size, don't forget that to choose the best color for your radiant cut diamond!

Radiant Cut Diamonds Appear Smaller Than Other Cuts

If you compare a one carat round cut diamond to a one carat radiant cut stone, you will notice that the round gem has a more impressive outline than the radiant. This is because the incredible sparkle of radiant cut diamonds that shines so brightly requires that the diamond be relatively deep compared to many other shapes. So, while you get a slightly smaller-looking gem for the same amount of money, you can rest assured that the stone will have exceptional brilliance. 

The Perfect Carat Weight for a Radiant Cut Diamond Set in a Ring

The perfect carat weight for a radiant cut diamond depends on your preferences and budget. The style of the setting can also play into the size of the diamond you choose. 

As radiant cut diamonds look slightly smaller than other diamond cuts of similar weight, you will need a bigger gem for minimalist mountings that highlight the primary diamond. 

This 18K yellow gold mounting does all it can to enhance the apparent size of the central diamond. Note how both the accent diamonds and the width of the band narrow towards the center of the ring.
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at Blue Nile

If you are looking for a ring with multiple sizable gems set flush against the straight sides of the radiant cut diamond, you can opt for a smaller primary stone. Those secondary gems will add a great deal to the visual impact of the overall design.

This platinum ring features a pair of trapezoid diamonds flanking the central radiant cut gem. The combined effect makes all three diamonds appear bigger than they are.
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at Blue Nile

Radiant Cut Diamond Rings Have a High Profile

As radiant cut diamonds are, by nature, deep, rings have a higher-than-average profile, leaving them vulnerable to snagging and accidental impacts. This is something to bear in mind when selecting a setting, especially if your diamond weighs more than a carat. If you are purchasing a ring that is intended to be worn only on special occasions, you can feel free to choose whatever setting style that most appeals to you regardless of the weight of the diamond. However, if the ring is going to be worn often, like an engagement ring will be, you should consider the wearer's lifestyle. Selecting a smaller stone and low-profile setting will minimize risk so the ring can be worn without concern. 

Men's Nugget Engagement Ring in 14k White Gold Blue NIle
This 14K white gold ring holds its' radiant cut diamond within the band for maximum protection.
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at BLue Nile

Emily Frontiere

Emily Frontiere is a GIA Graduate Gemologist. She is particularly experienced working with estate/antique jewelry.

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