Cart (0)
1 Choose your diamond
1. Diamond
Design Diamond Icon
2 Choose your Setting
2. Setting
Design Ring Setting Icon
3 View Completed
3. Preview
Design Ring Setting Icon
Edit Columns

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.


Filters:
Quick Ship Diamonds
Tool Tip Icon
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.
Best Value
Tool Tip Icon
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.
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.
More Filters
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
Tool Tip Icon
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
Tool Tip Icon
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 %
Tool Tip Icon
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
Tool Tip Icon
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
Tool Tip Icon
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
Tool Tip Icon
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
Tool Tip Icon
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
Tool Tip Icon
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
Tool Tip Icon

Lab diamonds are made using two processes, HPHT and CVD. Both mimic the natural process of earth diamonds. LEARN ABOUT LAB DIAMONDS

Quick Ship Diamonds
Tool Tip Icon
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.
Best Value
Tool Tip Icon
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.
1.01 Carat Princess Lab Diamond
Video play badge
Lab
BEST VALUE
Fast Delivery
Fast Delivery
Add To List
Add To Compare
Save for later

$292.00
1.01Carat
IColor
VS2Clarity
VGCut

1.01 Carat Princess Lab Diamond
Video play badge
Lab
BEST VALUE
Fast Delivery
Fast Delivery
Add To List
Add To Compare
Save for later

$292.00
1.01Carat
IColor
VS2Clarity
VGCut

1.02 Carat Princess Lab Diamond
Video play badge
Lab
BEST VALUE
Fast Delivery
Fast Delivery
Add To List
Add To Compare
Save for later

$295.00
1.02Carat
IColor
VS2Clarity
VGCut

Take 10% off Lab Diamonds with code LAB10.
1.04 Carat Princess Lab Diamond
Video play badge
Lab
BEST VALUE
Fast Delivery
Fast Delivery
Add To List
Add To Compare
Save for later

$301.00
1.04Carat
IColor
VS2Clarity
VGCut

0.90 Carat Princess Lab Diamond
Video play badge
Lab
BEST VALUE
Fast Delivery
Fast Delivery
Add To List
Add To Compare
Save for later

$306.00
0.9Carat
HColor
VS2Clarity
VGCut

0.97 Carat Princess Lab Diamond
Video play badge
Lab
BEST VALUE
Add To List
Add To Compare
Save for later

$379.00
0.97Carat
GColor
VS2Clarity
VGCut

0.73 Carat Princess Lab Diamond
Video play badge
Lab
BEST VALUE
Fast Delivery
Fast Delivery
Add To List
Add To Compare
Save for later

$382.00
0.73Carat
HColor
VS2Clarity
VGCut

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
3.06 Carat Princess Lab Diamond
Video play badge
Lab
BEST VALUE
Fast Delivery
Fast Delivery
Add To List
Add To Compare
Save for later

$1,962.00
3.06Carat
HColor
VS2Clarity
VGCut

4.33 Carat Princess Lab Diamond
Video play badge
Lab
BEST VALUE
Add To List
Add To Compare
Save for later

$1,968.00
4.33Carat
GColor
VS2Clarity
VGCut

4.00 Carat Princess Lab Diamond
Video play badge
Lab
BEST VALUE
Add To List
Add To Compare
Save for later

$1,975.00
4Carat
GColor
VS2Clarity
VGCut

Chat with a gemologist
Did you know?
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.
START NOW
1.08 Carat Princess Lab Diamond
Video play badge
Lab
BEST VALUE
Fast Delivery
Fast Delivery
Add To List
Add To Compare
Save for later

$386.00
1.08Carat
HColor
VS2Clarity
VGCut

0.91 Carat Princess Lab Diamond
Video play badge
Lab
BEST VALUE
Fast Delivery
Fast Delivery
Add To List
Add To Compare
Save for later

$387.00
0.91Carat
HColor
SI1Clarity
VGCut

0.93 Carat Princess Lab Diamond
Video play badge
Lab
BEST VALUE
Fast Delivery
Fast Delivery
Add To List
Add To Compare
Save for later

$403.00
0.93Carat
GColor
SI1Clarity
VGCut

1.15 Carat Princess Lab Diamond
Video play badge
Lab
BEST VALUE
Add To List
Add To Compare
Save for later

$432.00
1.15Carat
GColor
SI1Clarity
VGCut

1.17 Carat Princess Lab Diamond
Video play badge
Lab
BEST VALUE
Add To List
Add To Compare
Save for later

$436.00
1.17Carat
HColor
SI1Clarity
VGCut

1.05 Carat Princess Lab Diamond
Video play badge
Lab
BEST VALUE
Add To List
Add To Compare
Save for later

$453.00
1.05Carat
HColor
VS2Clarity
VGCut

0.92 Carat Princess Lab Diamond
Video play badge
Lab
BEST VALUE
Add To List
Add To Compare
Save for later

$453.00
0.92Carat
GColor
SI1Clarity
VGCut

1.10 Carat Princess Lab Diamond
Video play badge
Lab
BEST VALUE
Add To List
Add To Compare
Save for later

$455.00
1.1Carat
GColor
SI1Clarity
VGCut

1.08 Carat Princess Lab Diamond
Video play badge
Lab
BEST VALUE
Add To List
Add To Compare
Save for later

$457.00
1.08Carat
HColor
VS2Clarity
VGCut

0.72 Carat Princess Lab Diamond
Video play badge
Lab
BEST VALUE
Add To List
Add To Compare
Save for later

$460.00
0.72Carat
GColor
VS2Clarity
VGCut

1.10 Carat Princess Lab Diamond
Video play badge
Lab
BEST VALUE
Add To List
Add To Compare
Save for later

$461.00
1.1Carat
GColor
VS2Clarity
VGCut

Get the Best Deal - Look for Best Value diamonds while you shop. Best Value - Learn more
1.13 Carat Princess Lab Diamond
Video play badge
Lab
BEST VALUE
Add To List
Add To Compare
Save for later

$462.00
1.13Carat
GColor
VS2Clarity
VGCut

1.01 Carat Princess Lab Diamond
Video play badge
Lab
BEST VALUE
Add To List
Add To Compare
Save for later

$463.00
1.01Carat
GColor
VS2Clarity
VGCut

1.01 Carat Princess Lab Diamond
Video play badge
Lab
BEST VALUE
Add To List
Add To Compare
Save for later

$467.00
1.01Carat
GColor
VS2Clarity
VGCut

1.24 Carat Princess Lab Diamond
Video play badge
Lab
BEST VALUE
Add To List
Add To Compare
Save for later

$471.00
1.24Carat
GColor
SI1Clarity
VGCut

1.16 Carat Princess Lab Diamond
Video play badge
Lab
BEST VALUE
Add To List
Add To Compare
Save for later

$475.00
1.16Carat
GColor
VS2Clarity
VGCut

1.03 Carat Princess Lab Diamond
Video play badge
Lab
BEST VALUE
Add To List
Add To Compare
Save for later

$476.00
1.03Carat
GColor
VS2Clarity
VGCut

You’ve viewed 24 of 30,037 products
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.


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?
    arrow

    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?
    arrow

    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?
    arrow

    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?
    arrow

    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.