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Round Cut Diamonds

Price
Many factors impact diamond price. With Ritani's Diamond Price Match Guarantee you can be confident you'll get the best price for a diamond. Tip: Tradition tells you to budget 2-3 months' salary for your ring. We say, just do you.
Carat
Carat is the measure of a diamond's weight and size. We offer an array of high-quality diamonds ranging from 0.18 to 25.00 carats- with 1.00 carat being the most popular.
Color
A diamond’s color grade actually measures how little color it reflects. To strike the best balance between cost and beauty, go for diamonds in the Near Colorless range: G, H, and I.
Yellow Diamonds (Choose Below)
Clarity
Clarity indicates how many flaws are visible to the naked eye. Too many flaws can detract from a diamond's beauty.
Cut
Cut is the quality of a diamond’s proportions and symmetry. The better a diamond’s proportions and symmetry, the more sparkle it will produce. Cut is the most important of the 4 Cs.
Delivery Date
In a rush to get your diamond? Choose your ideal delivery date.
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Polish
A well-polished diamond will have excellent light return.
Fluorescence
Some diamonds glow blue or green when exposed to UV light. Since fluorescence is rarely visible, it has minimal impact on the appearance of your diamond. To save money, go for medium fluorescence.
Depth
Depth percentage correlates with a diamond's sparkle factor. It is measured by dividing the diamond height by its diameter. For maximum sparkle, the depth percentage of a round diamond should be between 54% and 66%.
Length/Width Ratio
The proportional relationship between your diamond’s length and width. A perfect round diamond would measure equally 1-to-1, so its LxW ratio would measure as 1.
Symmetry
Symmetry tells you how well a diamond’s facets align to create sparkle. Diamonds with perfect symmetry create the most sparkle and earn a grade of Excellent or Ideal.
Table
Table percentage tells you how big a diamond’s topmost facet (aka table) is in comparison to its diameter (aka girdle). When that ratio is in the right range, a diamond will sparkle more.
Culet
The culet is the point at the bottom of the diamond. If the point has a facet on it, it can stop light from reflecting and detract from the diamond's sparkle. Choose a diamond with no culet for optimum sparkle.
Certificate
All of Ritani’s natural diamonds are certified by either the GIA or AGSL, the industry’s two most respected grading labs.
99,242  products
0.18 Carat Round Diamond
High Definition
$212.00
Ideal | K | VVS1
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0.18 Carat Round Diamond
Best Value
$228.00
Ideal | D | SI2
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0.18 Carat Round Diamond
$230.00
Good | E | SI1
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0.30 Carat Round Diamond
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$233.00
Good | L | SI1
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0.19 Carat Round Diamond
$241.00
Good | E | SI2
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0.18 Carat Round Diamond
$242.00
Very Good | J | VVS2
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0.31 Carat Round Diamond
Best Value
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High Definition
$242.00
Ideal | L | SI2
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0.18 Carat Round Diamond
$247.00
Ideal | K | VVS2
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RECOMMENDED DIAMONDS
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We’re here to give you all the tools you need to help you find the best diamond for your budget. Our goal is to provide the most affordable diamonds with transparent pricing. We’ve made shopping even easier for you by labeling our lowest priced diamonds with the Best Value badge.
Best Value
1.13 Carat Round Diamond
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High Definition
$6,932.00
Ideal | I | VS1
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Best Value
1.53 Carat Round Diamond
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High Definition
$8,316.00
Ideal | K | VS2
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Best Value
1.21 Carat Round Diamond
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High Definition
$6,152.00
Ideal | J | VVS2
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WANT TO VIEW MORE RECOMMENDATIONS?
Change your filters to view even more diamond recommendations, or chat with a gemologist to find the right diamond for you.
0.18 Carat Round Diamond
Best Value
$249.00
Ideal | I | SI1
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0.18 Carat Round Diamond
$250.00
Very Good | I | VVS1
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0.30 Carat Round Diamond
$251.00
Good | L | SI1
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0.18 Carat Round Diamond
$251.00
Good | I | VS1
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0.30 Carat Round Diamond
Best Value
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High Definition
$252.00
Ideal | L | SI2
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0.18 Carat Round Diamond
$253.00
Very Good | D | SI1
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0.18 Carat Round Diamond
High Definition
$253.00
Ideal | J | VVS1
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0.18 Carat Round Diamond
Best Value
$258.00
Ideal | I | VS1
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0.31 Carat Round Diamond
$260.00
Ideal | L | SI2
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0.18 Carat Round Diamond
High Definition
$260.00
Very Good | I | VS2
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0.18 Carat Round Diamond
$261.00
Good | E | SI1
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0.33 Carat Round Diamond
Best Value
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$262.00
Ideal | L | SI2
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0.29 Carat Round Diamond
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$262.00
Very Good | L | SI2
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0.18 Carat Round Diamond
$263.00
Very Good | E | SI2
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0.35 Carat Round Diamond
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High Definition
$263.00
Very Good | L | SI1
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0.19 Carat Round Diamond
$265.00
Very Good | J | VVS2
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You’ve viewed 24 of 99,242 products

Round Cut Diamonds

Round cut diamonds (also called brilliant-cut diamonds) are revered for their classic shape and incredible sparkle. Cut with 58 facets — or 57, if there is no culet — the round shape was designed to produce as much sparkle as possible. As sparkle is what many people are looking for when they buy a diamond, round cuts are immensely popular. To get the most sparkle out of your round cut diamond, choose a stone with an Ideal cut. 60% of the diamonds in our inventory are round-shaped, making it easy for you to find the right one for your needs. Not only are round cut diamonds the most sparkly, but they are also the most popular diamond shape. However, because they are the most sparkly and the most popular, this makes them the most expensive diamond shape. To save money on your round cut diamond, try buying shy. For example, if you are interested in a 1 carat round cut diamond, go for a .90-.95 carat diamond instead. These diamonds will still appear to be the size of a 1 carat stone but will be hundreds of dollars less. For engagement rings, round cut diamonds flatter every type of finger. Round cut diamonds are perfect for custom jewelry, such as earrings and pendants. To make your round cut diamond appear even larger, choose a halo setting. Or let your round cut diamond stand out on its own in a solitaire setting. Before purchasing your round cut diamond, make sure to request HD imagery of it. All Ritani earth-grown diamonds are certified by either the AGS or GIA – the two most respected independent grading labs in the world. If you need help selecting your round cut diamond, reach out to us at 1-888-9RITANI or chat now.

 

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Is the diamond I am interested in (or have already bought) guaranteed to be mine?

Many of the diamonds on our site are a part of our exclusive inventory. However, some of the diamonds listed are from third-party vendors who sell their diamonds on our site as well as other sites. Because of this, you may purchase a diamond on our site and later receive an email that the diamond is no longer available. You will be notified within 48 hours if the diamond is no longer available. This slight delay is because many of our diamond vendors are internationally based, creating a time difference.  

When a diamond is no longer available, we will work with you to find a similar diamond. You will not be charged for anything until the order ships.

Can you engrave a diamond?

Engravings can be added to the girdle of the diamond using lasers. Please note that engraving a diamond will make it final sale. If you are interested in engraving your diamond, please contact our customer service team.

I’m interested in learning more about a diamond through a Virtual Gemologist appointment. Will the diamond be sold to someone else by then?

You can request for a diamond to be reserved. Just contact our customer service team at 1-888-9RITANI or chat online now.

How long does it take to receive HD images of the diamond I am interested in?

It can take up to 48 business hours to receive HD diamond images.

Can I upgrade my diamond?

Any Ritani diamond purchased directly on Ritani.com after October 11, 2012 is eligible for an upgrade, as long as it is certified by the GIA or AGSL. You can upgrade to a diamond that is at least 50% greater in value than your original diamond. We will exchange your diamond for credit equal to 100% of its original value. To start the diamond upgrade process, contact customer service at 1-888-9RITANI or chat now.

What is the rarest diamond color?

 Red diamonds are the rarest diamond color. There have been less than 30 red diamonds ever found! 

Which diamond cuts sparkle the most?

Round-cut diamonds sparkle the most. Choose an Ideal cut grade to get maximum sparkle! 

How many carats should an engagement ring be?

An engagement ring’s carat weight really depends on your budget and your future spouse’s tastes and expectations. Believe it or not, not everybody wants a rock! In the United States, the average engagement ring is about one carat. 

How much are real diamonds worth?

Real diamonds range greatly in price. Their cost really depends on many factors, such as the quality of the stone and the shape of the stone. 

What is a 1 carat diamond worth?

The worth of a 1-carat diamond depends on lots of factors, such as its cut grade, clarity grade, and color grade. A 1-carat diamond can cost anywhere between $1,000 to $12,000 or more. 

Why are diamonds so expensive?

Diamonds are the hardest gemstones, and they are in high demand, which makes them more expensive. Additionally, mining and cutting diamonds to become beautiful sparkling stones adds to their cost. The size and quality of a diamond can also make it more expensive.

How much is a 2 carat moissanite?

A moissanite stone that is the equivalent of a 2-carat round-cut diamond can cost between $900-$1,400 depending on its color grade.

Is a 1 carat diamond big?

A 1-carat diamond will be noticeable on the finger. The average engagement ring in the U.S. is about 1 carat. If you want to make your 1-carat diamond appear even bigger, choose a halo setting, which surrounds the stone with tiny diamonds. Note that the diamond shape you choose can make your diamond appear larger - for example, a 1-carat marquise cut, oval-cut, or pear-cut diamond will appear larger than a 1-carat round-cut diamond since these stones have a larger surface area.