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Buy Radiant Cut Diamonds
Experience the vibrant brilliance and modern elegance of radiant-cut diamond rings by Ritani. Our stunning collection features a wide variety of stones that you can customize into the perfect engagement ring orjewelry piece.
Quick Ship Diamonds
Quick Ship Diamonds
Shop loose diamonds that ship in 2 days or less. Delivery dates may change if you add your diamond to a setting.Best Value
Best Value
Shop loose diamonds in our inventory that we have identified as being Best Value. Best price and balance of the 4C's on the market.Ritani Reserve 
Ritani Reserve
Ritani Reserve Diamonds are an exclusive selection of diamonds that have the best cut which offers maximum sparkle. They reflect the most light, maximum brilliance, fire, and scintillation.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.
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.
Polish
A well-polished diamond will have excellent light return.
More Filters
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.
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.
None
Faint
Medium
Strong
Very Strong
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.
Excellent
Very Good
Good
Fair
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.
None
Very Small
Medium
Slightly Large
Certificate
All of Ritani’s natural diamonds are certified by either the GIA or AGSL, the industry’s two most respected grading labs.
Quick Ship Diamonds
Quick Ship Diamonds
Shop loose diamonds that ship in 2 days or less. Delivery dates may change if you add your diamond to a setting.Best Value
Best Value
Shop loose diamonds in our inventory that we have identified as being Best Value. Best price and balance of the 4C's on the market.Ritani Reserve
Ritani Reserve
Ritani Reserve Diamonds are an exclusive selection of diamonds that have the best cut which offers maximum sparkle. They reflect the most light, maximum brilliance, fire, and scintillation.
GEMOLOGIST PICKS
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These diamonds were hand picked by our in house gemologists who focus on balancing the 4 C's and best value pricing. Our gemologists are always here to help you find the diamond of your dreams. Chat Now
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You can connect with a commission free gemologist instantly and receive a live diamond inspection on any diamond. You can also connect and shop together and compare up-to three diamonds at a time instantly. Try it out. Start your diamond concierge consultation today.
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Experience the vibrant brilliance and modern elegance of radiant-cut diamond rings by Ritani. Our stunning collection features a wide variety of stones that you can customize into the perfect engagement ring orjewelry piece.
Why Choose Loose Radiant-Cut Diamonds?
Loose radiant-cut diamonds are a relatively new cut with a unique design that is available in rectangular and square shapes. They are also well-suited for engagement rings, pendants and earrings. Plus, the elongated silhouette of a radiant-cut diamond ring can make the finger appear longer and more slender.
Experience the Ritani Difference
At Ritani, we hand-select each radiant-shaped diamond from our collection for quality and brilliance. All of our diamonds come with our best value badge and transparent pricing, so you can be confident knowing you're getting unbeatable prices. Our diamond specialists conduct complimentary in-person previews so that you can assess your selected diamond.
Our expert team can help you choose the perfect diamond and personalize the design to meet your needs. We handcraft all of our radiant-cut engagement rings in-house in New York.
If you need help selecting your Radiant Cut Diamonds, reach out to us at 1-888-9RITANI or chat now.
Shop by Carat Weight
- 0.25 Carat Radiant Cut Diamond
- 0.5 Carat Radiant Cut Diamond
- 0.75 Carat Radiant Cut Diamond
- 1 Carat Radiant Cut Diamond
- 1.25 Carat Radiant Cut Diamond
- 1.5 Carat Radiant Cut Diamond
- 1.75 Carat Radiant Cut Diamond
- 2 Carat Radiant Cut Diamond
- 2.5 Carat Radiant Cut Diamond
- 3 Carat Radiant Cut Diamond
- 4 Carat Radiant Cut Diamond
- 5 Carat Radiant Cut Diamond
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Frequently Asked Questions
Are radiant-cut diamonds available in different carat weights?
Yes, radiant-cut diamonds are available in various carat weights ranging from under 1 carat to over 5 carats.Can I customize the setting for a radiant-cut diamond?
Yes, you can customize the setting for a radiant-cut diamond by selecting your preferred setting style and metal on Ritani's website.Can I insure my radiant-cut diamond ring?
Yes, you can insure your radiant-cut diamond ring just like any other piece of valuable jewelry.Can I view radiant-cut diamonds before purchasing?
Yes, you can view radiant-cut diamonds through Ritani s "Try Before You Buy" program, where you can schedule an in-person preview with a Preview Specialist.Do radiant-cut diamonds come with a certification?
Yes, all radiant-cut diamonds at Ritani are certified by reputable gemological laboratories such as GIA, AGS, or IGI.Does Ritani offer a warranty on radiant-cut diamond rings?
Ritani provides a lifetime warranty on all engagement rings and wedding bands, including those with radiant-cut diamonds, covering manufacturing defects.How do I care for a radiant-cut diamond ring?
To care for a radiant-cut diamond ring, clean it regularly with a mild soap solution and a soft brush, avoid harsh chemicals, and store it safely when not in use. Regular professional inspections and cleanings are also recommended.Is there a warranty on radiant-cut diamond rings?
Yes, Ritani offers a lifetime warranty on all engagement rings and wedding bands, including those with radiant-cut diamonds, covering manufacturing defects.What is Ritani's return policy for radiant-cut diamonds?
Ritani has a 30-day return policy for radiant-cut diamonds, provided the items are in their original condition and accompanied by all documentation.What is the price range for radiant-cut diamonds at Ritani?
The price range for radiant-cut diamonds at Ritani varies based on the diamond's carat weight, cut, color, clarity, and certification. Prices typically start from around $3,000 and can go up significantly.What settings are ideal for radiant-cut diamonds?
Ideal settings for radiant-cut diamonds are those that securely hold the diamond while enhancing its unique shape. Popular settings include solitaire, halo, and three-stone settings.
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