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Princess Cut Lab Grown Diamonds

Princess-cut diamonds are known for perfection and precision. Also called the square-modified brilliant cut, they feature precisely cut edges that form 90-degree angles on all sides. This modern take on classic diamond cuts stands out when set in rings, necklaces, earrings and bracelets.

Ritani's selection of princess-cut lab-grown diamonds offers a stylish, contemporary appeal minus the hefty price tag. Certified by the International Gemological Institute, our lab-grown princess-cut diamonds produce an X-shape facet that delivers maximum brilliance and bold sparkles.

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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.
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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Girdle Thickness
The girdle is the outer edge of the diamond, where the crown top meets the pavilion bottom.
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
Crown Angle
Pavilion Angle
Width (mm)
Height (mm)
Length (mm)
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.
Girdle Thickness
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The girdle is the outer edge of the diamond, where the crown top meets the pavilion bottom.
Very Thin
Thin
Medium
Sli. Thick
Thick
Very Thick
Ext. Thick
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.
None
Faint
Price Per Carat
Crown Angle
Pavilion Angle
Width (mm)
Height (mm)
Length (mm)
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
Fair
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
Very Small
Slightly Large
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

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Home / Lab Grown Diamonds / Princess Cut Lab Grown Diamonds
Home / Lab Grown Diamonds / Princess Cut Lab Grown Diamonds
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0.28 Carat Princess Lab Diamond
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0.48 Carat Princess Lab Diamond
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0.42 Carat Princess Lab Diamond
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30% off Lab Grown Diamonds with code LD30
The Ritani Promise: Diamond Price Transparency, Price Match Guarantee, 30-Day Returns & Exchanges, See It In-Person
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4 interest-free payments of $68.25.
0.36 Carat Princess Lab Diamond
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0.40 Carat Princess Lab Diamond
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4 interest-free payments of $69.50.
0.38 Carat Princess Lab Diamond
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GEMOLOGIST PICKS
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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12 payments of $167.00
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3.20 Carat Princess Lab Diamond
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3.20 Carat Princess Lab Diamond
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Diamond Report

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4 interest-free payments of $493.50.
3.88 Carat Princess Lab Diamond
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Chat with a gemologist
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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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30% off Engagement Rings with code LD30
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4 interest-free payments of $70.75.
0.53 Carat Princess Lab Diamond
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0.53 Carat Princess Lab Diamond
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Diamond Report

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4 interest-free payments of $72.50.
0.32 Carat Princess Lab Diamond
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4 interest-free payments of $72.75.
0.37 Carat Princess Lab Diamond
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Diamond Report

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0.36 Carat Princess Lab Diamond
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0.40 Carat Princess Lab Diamond
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0.54 Carat Princess Lab Diamond
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4 interest-free payments of $74.00.
0.70 Carat Princess Lab Diamond
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0.70 Carat Princess Lab Diamond
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0.56 Carat Princess Lab Diamond
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0.71 Carat Princess Lab Diamond
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4 interest-free payments of $76.00.
0.72 Carat Princess Lab Diamond
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0.72 Carat Princess Lab Diamond
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0.57 Carat Princess Lab Diamond
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0.57 Carat Princess Lab Diamond
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0.30 Carat Princess Lab Diamond
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0.30 Carat Princess Lab Diamond
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0.31 Carat Princess Lab Diamond
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Princess-cut diamonds are known for perfection and precision. Also called the square-modified brilliant cut, they feature precisely cut edges that form 90-degree angles on all sides. This modern take on classic diamond cuts stands out when set in rings, necklaces, earrings and bracelets.

Ritani's selection of princess-cut lab-grown diamonds offers a stylish, contemporary appeal minus the hefty price tag. Certified by the International Gemological Institute, our lab-grown princess-cut diamonds produce an X-shape facet that delivers maximum brilliance and bold sparkles.

​​

Choose Elegance and Excellence With Ritani

The Ritani difference is rooted in our commitment to providing customers with unparalleled excellence, both in service and the quality of our products. Whether you're looking for a princess-cut lab-grown diamond ring or a custom-made tennis bracelet, Ritani is your trusted partner for:

  • Superior handcrafted designs: Our engagement rings are skillfully handcrafted by local artisans in New York, ensuring superior quality and distinct designs for each customer.
  • Transparent pricing: We provide real-time pricing — no hidden costs or extra charges — so you can compare prices conveniently.
  • In-person previews: We understand that diamond jewelry is an investment. To give you that added peace of mind and help you make a decision, we offer in-person previews with our diamond experts.

Buy Lab-Grown Princess-Cut Diamonds Jewelry Online

Effortlessly incorporate style and elegance into your daily wear with lab-grown princess-cut diamond jewelry made just for you. Shop our collection of lab-grown diamonds today.

Effortlessly incorporate style and elegance into your daily wear with lab-grown princess-cut diamond jewelry made just for you. Shop our collection of lab-grown diamonds today.


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.