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Princess Cut Lab Grown Diamonds

Delve into the pristine elegance of Ritani's Princess-Cut Lab-Grown Diamonds, aligning contemporary style with eco-friendly practices. Distinguished by their transparency and the best value badge, these diamonds are perfect for creating princess-cut, sustainable engagement rings that dazzle with ethics and value.


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Best Value
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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
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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.
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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.
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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
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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.
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Faint
Depth
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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
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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
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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
Table
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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
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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
Large
Certificate
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All of Ritani’s natural diamonds are certified by either the GIA or AGSL, the industry’s two most respected grading labs.
Lab Diamond Growth Process
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Lab diamonds are made using two processes, HPHT and CVD. Both mimic the natural process of earth diamonds. LEARN ABOUT LAB DIAMONDS

Best Value
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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
Tool Tip Icon
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.
0.21 Carat Princess Lab Diamond
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$133.00
Good | G | VS1
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0.22 Carat Princess Lab Diamond
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$139.00
Good | F | VS2
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0.31 Carat Princess Lab Diamond
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$210.00
Good | D | VVS1
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0.37 Carat Princess Lab Diamond
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$210.00
Good | E | VVS2
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0.34 Carat Princess Lab Diamond
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$230.00
Good | D | VVS1
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0.48 Carat Princess Lab Diamond
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$273.00
Very Good | E | VVS2
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0.47 Carat Princess Lab Diamond
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$285.00
Very Good | E | VVS2
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5% off Lab Diamonds with code LAB5
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.
7.49 Carat Princess Lab Diamond
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$8,377.00
Very Good | F | SI1
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Change your filters to view even more diamond recommendations, or chat with a gemologist to find the right diamond for you.
0.52 Carat Princess Lab Diamond
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$290.00
Very Good | D | VVS1
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0.46 Carat Princess Lab Diamond
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$290.00
Good | G | VVS2
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0.51 Carat Princess Lab Diamond
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$291.00
Good | E | VS1
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0.50 Carat Princess Lab Diamond
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$293.00
Very Good | K | VVS2
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0.52 Carat Princess Lab Diamond
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$299.00
Very Good | K | VS1
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0.54 Carat Princess Lab Diamond
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$301.00
Good | K | VS2
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0.50 Carat Princess Lab Diamond
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$301.00
Good | J | VS1
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0.52 Carat Princess Lab Diamond
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$301.00
Very Good | F | VS1
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0.53 Carat Princess Lab Diamond
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$303.00
Good | E | VVS2
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0.53 Carat Princess Lab Diamond
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$304.00
Good | K | VS1
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0.55 Carat Princess Lab Diamond
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$305.00
Good | F | VVS2
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Get the Best Deal - Look for Best Value diamonds while you shop. Best Value - Learn more
0.70 Carat Princess Lab Diamond
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$310.00
Very Good | J | VS2
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0.72 Carat Princess Lab Diamond
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$313.00
Good | I | SI1
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0.55 Carat Princess Lab Diamond
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$314.00
Good | D | VS1
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0.54 Carat Princess Lab Diamond
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$315.00
Good | J | VS2
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0.72 Carat Princess Lab Diamond
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$316.00
Good | D | VVS2
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0.73 Carat Princess Lab Diamond
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$320.00
Very Good | D | VVS2
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Princess Cut Lab Grown Diamonds by Ritani

Shape

Princess-cut diamonds are highly favored for engagement rings and are also called square-modified brilliant cuts. They are essentially square versions of round brilliant-cut diamonds and look stunning when set in necklaces, earrings, and bracelets. Their 90-degree angles create bold and modern lines and sparkling facets. Princess-cut diamonds are one of the more contemporary diamond cuts, originating in the 1980s. The shape of a princess-cut diamond appears square or rectangular from the face-up view and resembles an inverted pyramid with four beveled edges from its side view. When viewed from above, princess-cut diamonds exhibit a characteristic X shape.

To obtain a perfectly square princess-cut diamond, look for a diamond with a length-to-width ratio of 1.00 to 1.05. Please note that the corners of a princess-cut diamond are prone to snagging and are more likely to chip. We recommend selecting settings with prongs to protect your princess-cut diamond from damage.

All Ritani lab-grown diamonds are certified by International Gemological Institute, (IGI) the most respected independent lab diamond grading laboratory. If you need help selecting a princess-cut lab-grown diamond, contact us at 1-888-9RITANI or chat now!

Frequently Asked Questions

  • How much does a Princess Cut Lab Grown Diamond cost?
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    A Princess Cut Lab Grown Diamond can cost anywhere between $120 and $23,000 depending on the 4 cs. The median price is $2,500.

  • What settings work best with princess cut lab-grown diamonds?
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    Princess cut diamonds fit well with a variety of settings, including solitaire, halo, and three-stone designs. To protect the corners, which are more prone to chipping, consider settings with V-shaped prongs or a bezel setting that encases the diamond's edges.

  • How do I care for my princess cut lab-grown diamond?
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    Caring for a princess cut lab-grown diamond involves regular cleaning with a soft brush and mild soap to remove any buildup of dirt and oils. It's also wise to have it inspected by a professional jeweler periodically to ensure the setting remains secure, especially given the diamond's sharp corners. Avoid exposing your diamond jewelry to harsh chemicals or physical impacts that could damage the stone.

  • What is a princess cut lab-grown diamond?
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    A princess cut lab-grown diamond is a square or rectangular-shaped diamond with sharp corners and numerous facets that maximize the stone's brilliance. It's one of the most popular cuts for engagement rings and other fine jewelry. Lab-grown princess diamonds are created in controlled laboratory conditions, offering an ethical and more affordable alternative to mined diamonds, without sacrificing quality or beauty.