Lab-grown diamonds with princess cut
Discover our collection of princess-cut lab-grown diamonds. A square, brilliant, and modern cut that maximizes the diamond's fire and brilliance.
What is a princess cut in a lab-grown diamond
The princess cut is one of the most in-demand cuts on the market. Its square shape with slightly beveled corners and its multiple facets, between 57 and 76 depending on the design, cause light to fragment and reflect with remarkable intensity.
It is the second most popular cut in the world after the round brilliant, and in lab-grown diamonds, it gains even more prominence because it allows for visually high-quality pieces at a significantly lower price than natural diamonds.
The ideal proportion of the princess cut is between 1:1 and 1:05 in length-to-width ratio, which gives it its characteristic square appearance.
The closer it is to 1:1, the more balanced the light distribution and the more perfect the square appears.
Why choose a lab-grown diamond with a princess cut
Lab-grown diamonds with a princess cut offer exactly the same physical, optical, and chemical properties as natural diamonds.
They are pure carbon in a cubic crystalline structure. The only difference is in the origin: they are created using HPHT or CVD processes, without mining.
Choosing a lab-grown princess diamond means:
- Obtaining a diamond with identical hardness, brilliance, and fire as a natural one.
- Accessing prices that can be up to 80% cheaper for the same quality.
- Having full traceability and conflict-free origin.
- Having IGI certification with all detailed gemological parameters.
How the princess cut is created in the laboratory
The process begins with the creation of the rough diamond using HPHT or CVD techniques.
Once the stone is obtained, lapidaries apply the princess cut design through a high-precision cutting, shaping, and polishing process.
The princess cut was developed in the 1980s as a square alternative to the round brilliant that made better use of the rough material.
Its design allows it to retain more mass than other square cuts, making it especially efficient.
The 4Cs of the lab-grown princess diamond
Color
For the princess cut, colors between D and E are recommended.
Thanks to the number of facets, the color is usually perceived less than in simpler cuts.
However, in colors from I onwards, visible yellowish tones may appear in the corners.
At Diamante de Laboratorio, we work with D-E colors to offer optimal value for money.
Clarity
The princess cut is relatively tolerant of internal inclusions due to its facet pattern.
Inclusions in the corners, however, can be more visible and increase the risk of chipping if there is no adequate protection.
We recommend VVS1 or VVS2 clarity to ensure a visually clean and structurally sound stone.
Cut
The cut in a princess cut diamond evaluates proportions, symmetry, and polish.
A length-to-width ratio between 1:1 and 1:05 is ideal for a classic square.
Optimal depth proportions are between 67% and 75%.
Significant deviations can cause light to escape through the sides and reduce the diamond's brilliance.
Carat
The princess cut retains more mass from the rough diamond than many other cuts.
This makes carat prices particularly competitive.
A 1-carat princess cut stone may appear slightly more compact than a round brilliant of the same weight, but it maintains a strong visual presence.
IGI certification for lab-grown princess diamonds
All princess diamonds in our collection come with IGI (International Gemological Institute) certification, the benchmark standard for lab-grown diamonds.
The certificate details the carat weight, exact dimensions, cut proportions, color, clarity, polish, and symmetry.
It also explicitly identifies the lab origin and the growth method used, whether HPHT or CVD.
Before purchasing, it is essential to demand an IGI or GIA certificate, as it is the only objective guarantee of the stone's actual characteristics.
How to choose your lab-grown princess diamond
The princess cut adapts to multiple jewelry styles, from classic solitaires to halo or side pavé designs.
Before choosing, consider these factors:
- Corner protection: the corners are the most fragile area of the princess cut. V-prongs or bezel settings are recommended.
- Length-to-width ratio: for a perfect square, look for proportions between 1:1 and 1:02.
- Rectangular format: if you prefer a more elongated stone, you can opt for proportions up to 1:15.
- Recommended combination: color E or higher with VVS2 clarity offers a visually flawless stone at a balanced price.
- Higher gemological demand: if the budget allows, VVS1 or higher provides maximum purity and peace of mind.
FAQs About Princess Cut Lab Grown Diamonds
Yes. Diamond hardness is a property of carbon in crystalline structure, regardless of its origin. A lab-grown diamond and a natural diamond both have a hardness of 10 on the Mohs scale—the highest possible. The princess cut, with its sharp corners, requires a setting that protects them, but the stone itself is as durable as any other diamond.
A princess-cut lab-grown diamond can be up to 80% more affordable than a natural diamond equivalent in carat, color, and clarity.
It is one of the most popular cuts for engagement rings precisely because of its modern character and maximum brilliance retention. It is important to choose a setting that protects the corners—V-prongs or designs that enclose the angles—to ensure long-term durability.
No. A gemologist cannot distinguish a lab-grown diamond from a natural one with the naked eye or with standard gemological tools. Only specialized spectroscopy equipment can identify the origin. Visually, the brilliance, fire, and dispersion of the princess cut are identical regardless of origin.
All our lab-grown diamonds include an IGI (International Gemological Institute) certificate, which is the global reference standard for lab-grown diamonds. The certificate details the carat weight, color, clarity, cut proportions, and explicitly confirms the lab-grown origin of the stone.
It depends on taste and context. The round brilliant has more facets and maximizes overall brilliance. The princess offers a more contemporary, square style with equally intense brilliance, but distributed differently. In terms of price, the princess is usually slightly more economical per carat because it makes better use of the raw material. Both are excellent options with IGI certification.
