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Round Cut Diamonds
Round cut diamonds are the most popular and sought-after diamond shape for engagement rings and fine jewelry. Known for their unmatched brilliance and timeless appeal, round brilliant diamonds are expertly cut to maximize light performance, creating exceptional sparkle from every angle. You'll find an extensive selection of round cut diamonds in a variety of carat weights, colors, clarities, and price points. With transparent diamond pricing and access to thousands of GIA and IGI certified diamonds, it's easy to compare options and find the perfect round diamond for your budget.
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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.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.
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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.
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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.
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.
Price Per Carat
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Crown Angle
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Pavilion Angle
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Width (mm)
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Height (mm)
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Length (mm)
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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%.
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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.
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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.
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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.
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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.
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Round cut diamonds are the most popular and sought-after diamond shape for engagement rings and fine jewelry. Known for their unmatched brilliance and timeless appeal, round brilliant diamonds are expertly cut to maximize light performance, creating exceptional sparkle from every angle. You'll find an extensive selection of round cut diamonds in a variety of carat weights, colors, clarities, and price points. With transparent diamond pricing and access to thousands of GIA and IGI certified diamonds, it's easy to compare options and find the perfect round diamond for your budget.
Round-Cut Diamonds
Why Choose a Round Brilliant Diamond?
The round brilliant cut has remained the world's most popular diamond shape for generations. Featuring 58 precisely arranged facets, round diamonds are engineered to maximize the reflection and refraction of light, producing exceptional fire, brilliance, and scintillation. If sparkle is your top priority, no diamond shape outperforms a well-cut round brilliant diamond.
Round cut diamonds are also one of the most versatile diamond shapes. Their symmetrical appearance complements virtually every engagement ring setting, from classic solitaire engagement rings to halo, pavé, three-stone, and vintage-inspired designs. Whether set in platinum, white gold, yellow gold, or rose gold, a round diamond delivers a timeless look that never goes out of style.
When shopping for a round diamond, cut quality is especially important. A well-cut round brilliant diamond can appear brighter, more lively, and even larger than a poorly cut diamond of the same carat weight. That's why many shoppers prioritize Excellent and Ideal cut diamonds when searching for the perfect stone.
At Ritani, you can compare round cut diamonds side-by-side using detailed specifications, certification reports, and high-definition imagery. Our transparent pricing helps you understand exactly what you're paying for, while our Best Value diamonds make it easy to identify exceptional opportunities across a wide range of budgets.
Browse our collection of round brilliant diamonds to discover why this iconic diamond shape continues to be the preferred choice for engagement rings, diamond stud earrings, pendants, and heirloom-quality jewelry.
Round cut diamonds are also one of the most versatile diamond shapes. Their symmetrical appearance complements virtually every engagement ring setting, from classic solitaire engagement rings to halo, pavé, three-stone, and vintage-inspired designs. Whether set in platinum, white gold, yellow gold, or rose gold, a round diamond delivers a timeless look that never goes out of style.
When shopping for a round diamond, cut quality is especially important. A well-cut round brilliant diamond can appear brighter, more lively, and even larger than a poorly cut diamond of the same carat weight. That's why many shoppers prioritize Excellent and Ideal cut diamonds when searching for the perfect stone.
At Ritani, you can compare round cut diamonds side-by-side using detailed specifications, certification reports, and high-definition imagery. Our transparent pricing helps you understand exactly what you're paying for, while our Best Value diamonds make it easy to identify exceptional opportunities across a wide range of budgets.
Browse our collection of round brilliant diamonds to discover why this iconic diamond shape continues to be the preferred choice for engagement rings, diamond stud earrings, pendants, and heirloom-quality jewelry.
Experience the Ritani Difference
At Ritani, we have an extensive selection of masterfully crafted round-cut diamonds. When you choose our diamonds, you can benefit from:
- Expert craftsmanship: Our skilled artisans and advanced technology ensure every round-cut diamond is perfectly crafted.
- Customization: Design custom round-shaped diamond jewelry that reflects your unique story. Select your ideal diamond, setting, and metal and let our team bring your vision to life.
- In-person previews: Our specialists conduct in-person previews, allowing you to physically examine the diamond before purchasing.
- Transparent pricing: We offer upfront, transparent pricing on all our round-cut diamonds.
If you need help selecting your Round Cut Diamonds, reach out to us at 1-888-9RITANI or chat now.
Common Questions
Frequently Asked Questions
Yes, round-cut diamonds are available in various carat weights ranging from under 1 carat to over 5 carats.
Yes, you can customize the setting for a round-cut diamond by selecting your preferred setting style and metal on Ritani's website.
Yes, you can insure your round-cut diamond ring just like any other piece of valuable jewelry.
Yes, you can view round-cut diamonds through Ritani s "Try Before You Buy" program, where you can schedule an in-person preview with a Preview Specialist.
Yes, all round-cut diamonds at Ritani come with certification from reputable gemological laboratories such as GIA, AGS, or IGI.
To care for a round-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.
Yes, Ritani offers a lifetime warranty on all engagement rings and wedding bands, including those with round-cut diamonds, covering manufacturing defects.
The price range for round-cut diamonds at Ritani varies based on the diamond's carat weight, cut, color, clarity, and certification. Prices typically start from around $1,500 and can go up significantly.
Ritani offers a 30-day return policy for round-cut diamonds, provided the items are in their original condition and accompanied by all documentation.
The best settings for round-cut diamonds are those that securely hold the diamond while showcasing its brilliance. Popular settings include solitaire, halo, and three-stone settings.
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