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  2. Step 2: Choose Your Setting
  3. Step 3: View Complete Product

Natural Diamonds

Shop for diamonds with ease with price transparency available on every diamond. Browse over 200k GIA-graded, conflict-free natural diamonds in various carat weights, colors, cuts, and shapes. Use our HD 360° view and filters to find high-quality best value diamonds. Our diamond buying guide ensures you make the best choice.

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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.
Shape
Shape influences the personality and price of a diamond.
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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Max
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.
Quick Ship
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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0.24 Carat Ideal Cut Round Natural Diamond - I Color, VS2 Clarity - GIA Certified
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0.27 Carat Ideal Cut Round Natural Diamond - I Color, VS2 Clarity - GIA Certified
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0.24 Carat Ideal Cut Round Natural Diamond - I Color, VS2 Clarity - GIA Certified
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0.30 Carat Ideal Cut Round Natural Diamond - H Color, VS2 Clarity - GIA Certified
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0.30 Carat Ideal Cut Round Natural Diamond - H Color, VS2 Clarity - GIA Certified
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0.30 Carat Ideal Cut Round Natural Diamond - H Color, VS2 Clarity - GIA Certified
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0.30 Carat Ideal Cut Round Natural Diamond - H Color, VS2 Clarity - GIA Certified
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0.32 Carat Ideal Cut Round Natural Diamond - I Color, SI1 Clarity - GIA Certified
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0.27 Carat Ideal Cut Round Natural Diamond - H Color, VS2 Clarity - GIA Certified
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0.30 Carat Ideal Cut Round Natural Diamond - I Color, VS2 Clarity - GIA Certified
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0.29 Carat Ideal Cut Round Natural Diamond - I Color, VS2 Clarity - GIA Certified
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0.29 Carat Ideal Cut Round Natural Diamond - I Color, VS2 Clarity - GIA Certified
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0.35 Carat Ideal Cut Round Natural Diamond - I Color, SI1 Clarity - GIA Certified
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0.32 Carat Ideal Cut Round Natural Diamond - H Color, SI1 Clarity - GIA Certified
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0.35 Carat Ideal Cut Round Natural Diamond - I Color, SI1 Clarity - GIA Certified
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0.35 Carat Ideal Cut Round Natural Diamond - I Color, VS2 Clarity - GIA Certified
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0.25 Carat Ideal Cut Round Natural Diamond - I Color, VS2 Clarity - GIA Certified
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0.33 Carat Ideal Cut Round Natural Diamond - H Color, VS2 Clarity - GIA Certified
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0.32 Carat Ideal Cut Round Natural Diamond - G Color, SI1 Clarity - GIA Certified
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0.37 Carat Ideal Cut Round Natural Diamond - I Color, SI1 Clarity - GIA Certified
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0.28 Carat Ideal Cut Round Natural Diamond - H Color, VS2 Clarity - GIA Certified
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0.34 Carat Ideal Cut Round Natural Diamond - H Color, VS2 Clarity - GIA Certified
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Natural
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0.32 Carat Ideal Cut Round Natural Diamond - I Color, VS2 Clarity - GIA Certified
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Natural
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0.38 Carat Ideal Cut Round Natural Diamond - I Color, VS2 Clarity - GIA Certified
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Shop for diamonds with ease with price transparency available on every diamond. Browse over 200k GIA-graded, conflict-free natural diamonds in various carat weights, colors, cuts, and shapes. Use our HD 360° view and filters to find high-quality best value diamonds. Our diamond buying guide ensures you make the best choice.

Natural Diamonds

Certified Natural Diamonds You Can Trust

Every natural diamond at Ritani is independently graded by the GIA or AGS — the two most trusted gemological laboratories in the world. You'll see the full certificate for every stone before you buy. No vague descriptions, no hidden grades. Just honest, third-party verified quality at a clear natural diamond price.

Shop Natural Diamonds by Shape

​​You might know exactly what you want, or you may be just starting to browse; in either case, our inventory spans ten distinct diamond shapes with convenient filters to help you find the right stone fast.
  • Round: The best-selling cut for a reason. Unmatched brilliance.
  • Oval: Elongated, elegant, and very much in demand.
  • Emerald: Bold geometry and exceptional clarity presence.
  • Cushion: Soft edges, deep sparkle, timeless appeal.
  • Pear, Marquise, Radiant, Asscher, Princess, Heart: All available in a wide range of sizes and grades.

How to Find the Right Natural Diamond

​​Not sure where to start? These four factors determine a diamond's quality and its price.
  • Cut: The most important factor. A well-cut diamond reflects light in a way that makes it appear bright and alive. We recommend prioritizing cut grade above all else.
  • Color: Diamond color is graded on a scale from D (colorless) to Z (light yellow). Most people find the sweet spot somewhere between G and I; near-colorless stones that look stunning without the premium price.
  • Clarity: Refers to the presence of internal inclusions or surface blemishes. VS2 and SI1 grades typically offer excellent visual quality at a better natural diamond price point.
  • Carat: The weight of the diamond. Bigger isn't always better. A smaller, well-cut stone can outshine a larger one with a poor cut.

Not sure where you stand on the four C’s? Our in-house gemologists are available to walk you through it in real time; no commission, no pressure.

Diamonds For Sale Across Every Shape and Budget

Browse Ritani's full inventory of natural diamonds using filters for shape, carat, cut, color, and clarity; or explore our Gemologist Picks for hand-selected stones that balance quality and value exceptionally well.

You can also request HD video or 360° imagery on any stone not already listed that way, so you can see exactly how it moves in the light before making a decision.

If you need help selecting your diamonds, contact us at Contact Phone number 1-888-9RITANI

Common Questions

Frequently Asked Questions

The Ritani Diamonds collection includes a variety of diamond shapes and sizes, such as round, princess, cushion, emerald, marquise and more. We offer both natural diamonds and lab-grown diamonds to suit different preferences and budgets.
The 4 Cs of diamonds are cut, color, clarity and carat weight. These criteria determine a diamond's quality and value. Cut refers to how well the diamond is shaped; color measures the absence of color; clarity accesses the presence of inclusions; and carat weight indicates the diamond's size.
Yes, Ritani is committed to ethical sourcing. All of our diamonds are conflict-free and comply with the Kimberley Process, ensuring that they are sourced responsibly and ethically.
Yes, Ritani offers a free in-person preview program that allows you to see a diamond before purchasing it. You can select a diamond online and have it sent to a participating jeweler near you for an in-person viewing.

To choose the right diamond for your jewelry, consider the 4 Cs: cut, color, clarity and carat weight. Our website offers detailed guides and filters to help you find a diamond that matches your specifications and budget.​

Yes, we offer custom diamond jewelry. You can design your own engagement ring, wedding band, or other jewelry pieces by selecting your preferred diamond and setting. Our jewelry experts are available to assist you with the customization process.
Ritani diamonds are certified by reputable gemological laboratories such as the Gemological Institute of America (GIA) and the International Gemological Institute (IGI). These certifications provide an assessment of the diamond's quality and authenticity.
To care for your diamond jewelry, clean it regularly with a soft cloth and mild soap. Avoid exposing your jewelry to harsh chemicals or extreme temperatures. Store your pieces in a jewelry box or pouch to prevent scratches and damage.
Yes, we offer financing options for diamond purchases through Affirm. You can choose to pay for your diamond over time with easy monthly payments. Select Affirm at checkout to apply.

Every diamond purchase includes an independent GIA or AGS grading certificate, complimentary shipping, and access to our in-house gemologist team for guidance before and after purchase.​

Ritani lists the full certificate and pricing details on every stone so you can compare across the market. We don't inflate prices or hide grades. You can also use our filters to shop within a set budget, or ask a gemologist to pull options that hit your target price and quality level.

Ritani offers a 30-day return window on all diamond purchases. If the stone isn't right when it arrives, we'll make it easy to send back.