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  2. Step 2: Choose Your Setting
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Lab Grown Diamonds

You've done your research. You know what you want. Now it's time to find the one. Browse our full collection of certified lab-grown diamonds. Shop by shape, carat, color, cut and clarity until you land on exactly the right stone. Whether you're building a custom engagement ring or adding a stunning piece of lab-grown jewelry to your collection, you're in the right place.
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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.
Min
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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Max
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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Max
Pavilion Angle
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Max
Width (mm)
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Max
Height (mm)
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Max
Length (mm)
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Max
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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Max
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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Max
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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0.21 Carat Good Cut Pear Lab-Grown Diamond - G Color, VVS2 Clarity - IGI Certified
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0.19 Carat Very Good Cut Emerald Lab-Grown Diamond - D Color, VS1 Clarity - IGI Certified
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0.22 Carat Good Cut Marquise Lab-Grown Diamond - D Color, SI1 Clarity - IGI Certified
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0.20 Carat Good Cut Emerald Lab-Grown Diamond - D Color, VS2 Clarity - IGI Certified
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0.20 Carat Good Cut Emerald Lab-Grown Diamond - D Color, VS2 Clarity - IGI Certified
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0.24 Carat Good Cut Pear Lab-Grown Diamond - G Color, VS2 Clarity - IGI Certified
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0.23 Carat Very Good Cut Oval Lab-Grown Diamond - D Color, SI1 Clarity - IGI Certified
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0.20 Carat Very Good Cut Emerald Lab-Grown Diamond - D Color, VS1 Clarity - IGI Certified
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0.19 Carat Very Good Cut Emerald Lab-Grown Diamond - D Color, VVS1 Clarity - IGI Certified
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0.21 Carat Good Cut Emerald Lab-Grown Diamond - F Color, VS1 Clarity - IGI Certified
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0.21 Carat Good Cut Emerald Lab-Grown Diamond - D Color, VS2 Clarity - IGI Certified
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0.21 Carat Very Good Cut Emerald Lab-Grown Diamond - D Color, VS1 Clarity - IGI Certified
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0.20 Carat Good Cut Emerald Lab-Grown Diamond - D Color, VVS2 Clarity - IGI Certified
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0.20 Carat Very Good Cut Emerald Lab-Grown Diamond - D Color, VVS2 Clarity - IGI Certified
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0.21 Carat Good Cut Emerald Lab-Grown Diamond - D Color, VS1 Clarity - IGI Certified
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0.21 Carat Good Cut Emerald Lab-Grown Diamond - D Color, VS1 Clarity - IGI Certified
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0.20 Carat Good Cut Emerald Lab-Grown Diamond - D Color, VVS2 Clarity - IGI Certified
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0.21 Carat Good Cut Emerald Lab-Grown Diamond - D Color, VS2 Clarity - IGI Certified
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0.21 Carat Very Good Cut Emerald Lab-Grown Diamond - D Color, VS2 Clarity - IGI Certified
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0.20 Carat Very Good Cut Pear Lab-Grown Diamond - E Color, VS1 Clarity - IGI Certified
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0.21 Carat Good Cut Marquise Lab-Grown Diamond - D Color, VS1 Clarity - IGI Certified
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0.20 Carat Very Good Cut Emerald Lab-Grown Diamond - D Color, VVS1 Clarity - IGI Certified
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0.20 Carat Good Cut Pear Lab-Grown Diamond - E Color, VVS2 Clarity - IGI Certified
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0.20 Carat Good Cut Pear Lab-Grown Diamond - D Color, VVS2 Clarity - IGI Certified
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You’ve viewed 24 of 1,008,208 products
You've done your research. You know what you want. Now it's time to find the one. Browse our full collection of certified lab-grown diamonds. Shop by shape, carat, color, cut and clarity until you land on exactly the right stone. Whether you're building a custom engagement ring or adding a stunning piece of lab-grown jewelry to your collection, you're in the right place.

Certified Lab-Grown Diamonds

Why Choose a Lab-Grown Diamond?

Lab-grown diamonds are real diamonds. They share the same physical, chemical, and optical properties as earth-mined stones. The only difference is where they come from. Instead of being mined from the earth, they're grown in a controlled environment that replicated the natural diamond-forming process. The result? A stone that's every bit as brilliant, durable, and beautiful, at a fraction of the cost. 

Here's what makes them worth a closer look:
  • Certified and graded: Every lab-grown diamond we carry is IGI certified, so you know exactly what you're getting.
  • Available in every cut: Round, cushion, oval, emerald, pear, princess, radiant, marquise, heart, and asscher
  • Ethically sourced by design: No mining means a significantly smaller environmental footprint, without sacrificing size, quality or sparkle.
  • Dramatically more affordable: Lab-grown diamond cost is typically 50-80% les than a comparable natural diamond, which means you can go bigger, go better, or simply save.

Find Your Diamond, Your Way

We've made it easy to narrow things down fast. Use the filters at the top of the page to browse by:​
  • Carat weight: From delicate to show-stopping–we even provide a sliding size scale
  • Shape: Round cuts are our bestseller, but every shape has its moment
  • Color and clarity: Dial in exactly the specs you want
  • Cut grade: Because the cut is what makes a diamond truly come alive
Not sure where to start? Our in-house gemologists are available for a live, commission-free consultation. They can walk you through your options, compare stones side by side, and help you find the best value for your budget.

The Ritani Difference

​​Choosing a diamond is one of the most meaningful purchases you'll ever make, and at Ritani, we believe the experience should feel as exceptional as the stone itself. That starts with something the industry doesn't always offer: complete transparency. We show you the true cost behind every diamond, the metal, the labor, the setting, with no hidden markups and no mystery pricing, because you should know what you're investing in.

Every piece we create is made to order, freshly handcrafted at our White Plains, NY facility by skilled artisans and overseen by our in-house gemologists from start to finish. Nothing sits on a shelf. Nothing is rushed off to a warehouse. Your jewelry is made for you, and only you.

Because we control the entire process under one roof, we're able to move faster than anyone else in the industry, without cutting corners on quality. And with our 30-day return and exchange policy, you can shop with the confidence that we stand behind every piece we make.

That is what it means to buy from Ritani.

Common Questions

Frequently Asked Questions

Yes, lab-grown diamonds are graded and certified just like natural diamonds. The grading and certification process for lab-grown diamonds is very similar to that of natural diamonds, ensuring that consumers have accurate information about the quality and characteristics of the diamond they are purchasing.

Lab-grown diamonds are evaluated based on the same criteria as natural diamonds, including the 4Cs: Carat weight, Cut, Color, and Clarity. A certified gemologist or a reputable gemological laboratory will assess these factors to determine the overall quality of the lab-grown diamond.

Additionally, lab-grown diamonds often come with a certification document that provides detailed information about the diamond's specifications, such as its carat weight, cut grade, color grade, and clarity grade. This certification serves as proof of the diamond's authenticity and quality.

In short, lab-grown diamonds undergo a rigorous grading and certification process to ensure transparency and quality, similar to natural diamonds.

The value of buying lab-grown diamonds depends on your preferences and priorities. Lab-grown diamonds offer several advantages that make them a compelling choice for many consumers:

1. **Cost-Effective:** Lab-grown diamonds are typically more affordable than natural diamonds of comparable quality. This allows you to get a larger or higher-quality diamond for your budget.

2. **Ethical and Environmental Considerations:** Lab-grown diamonds are often seen as a more ethical and environmentally friendly option. They do not involve the environmental impact or ethical concerns associated with traditional diamond mining.

3. **Transparency:** The lab-grown diamond industry is known for its transparency, with clear documentation of a diamond's origin and characteristics.

4. **Quality Control:** Lab-grown diamonds are produced in controlled environments, leading to consistent quality and fewer inclusions.

5. **Customization:** Lab-grown diamonds can be easily customized in terms of size, shape, and cut, giving you more options to find the perfect diamond.

However, whether lab-grown diamonds are worth it for you ultimately depends on your personal preferences, values, and budget. Some may prefer the rarity and symbolism of natural diamonds, while others prioritize cost savings and ethical considerations. It's essential to consider your priorities and do thorough research before making a decision.

Ritani offers a preview feature that allows you to view your completed ring with the selected lab-grown diamond to ensure it meets your expectations before purchasing.

Yes, Ritani offers customization options for loose lab-grown diamonds, allowing you to choose the size, shape, and cut to find the perfect diamond for your needs.

Ritani's lab diamonds for sale undergo a stringent grading and certification process similar to that of mined diamonds. This process is conducted by certified gemologists or reputable gemological laboratories, which assess the diamonds based on the 4Cs: Carat weight, Cut, Color, and Clarity. Each diamond is provided with a certification document that verifies its specifications and serves as proof of its quality and authenticity, so you can rest assured you're getting the best lab diamonds with best-value pricing.

Lab-grown diamonds are actual diamonds with the same chemical composition (pure carbon crystallized in isotropic 3D form) as natural diamonds, whereas moissanite and cubic zirconia are different materials. Moissanite is made of silicon carbide and cubic zirconia is made of zirconium dioxide; both simulate the appearance of diamonds but do not have the same properties, such as hardness or refractive index. Lab-grown diamonds are virtually indistinguishable from natural diamonds without specialized equipment, while moissanite and cubic zirconia can often be identified by their greater brilliance and fire or lower hardness.

Yes, you can customize a piece of jewelry with a lab-created diamond. Ritani offers customization options for many of our jewelry pieces, allowing you to choose the type of metal, setting, and diamond specifications to create a unique piece.
Lab-grown diamonds are generally more affordable than natural diamonds of comparable quality. This is because the production process for lab-grown diamonds is more efficient and less resource-intensive than mining natural diamonds.

Lab-grown diamonds typically cost 50-80% less than a comparable natural diamond.

They look the same. Both are graded on the same 4Cs scale (cut, color, clarity, and carat), and a high-quality lab-grown diamond is visually indistinguishable from a high-quality natural diamond.