Yes, a Dutch Marquise diamond can be a real diamond. The important thing to understand is that “Dutch Marquise” describes a cut or style, not the material the diamond is made from.
A Dutch Marquise can be made from natural diamond or laboratory-grown diamond. What would make a stone not a real diamond is if it were made from a diamond simulant such as cubic zirconia or moissanite.
The terminology gets confusing because “Dutch Marquise” is not a universally standardized gemological category. Current sources also use the name differently, with some describing a modern elongated-hexagonal style and others using it for an antique rose-cut variation.
So if you are considering one, the safest approach is to look beyond the name and verify what the stone actually is.
Are Dutch Marquise diamonds real diamonds?
Yes. If the stone is made from diamond material, it is a diamond regardless of whether it has a conventional marquise cut or a less familiar specialty cut.
A diamond’s cut refers to how the rough material has been shaped and faceted. It does not determine whether the underlying material is diamond.
This is why the following can all be diamonds:
- Round brilliant diamonds
- Oval diamonds
- Emerald-cut diamonds
- Traditional marquise diamonds
- Dutch Marquise diamonds
- Other specialty diamond cuts
The word “Dutch” does not mean that the stone is fake, simulated, or made from a different gemstone.
The same principle applies to laboratory-grown diamonds. GIA explains that laboratory-grown diamonds have essentially the same chemical composition, crystal structure, optical properties, and physical properties as natural diamonds. They are diamonds, although they have a laboratory origin rather than a geological one.
What does “real” mean for a Dutch Marquise?
When someone asks whether a Dutch Marquise is real, they may actually be asking several different questions.
Is it actually diamond?
This is the most important question.
A genuine diamond, whether natural or laboratory-grown, is diamond material. A simulant only resembles diamond.
For example, cubic zirconia and moissanite can be used to imitate the appearance of a diamond, but they are different materials. GIA specifically distinguishes laboratory-grown diamonds from diamond simulants because lab-grown diamonds have essentially the same chemical and physical properties as natural diamonds.
Is the Dutch Marquise cut real?
Yes, the name is used for genuine diamond cutting styles.
However, “Dutch Marquise” should not be treated as though it were a single universally standardized laboratory category. Specialty cut names can function as trade terminology, while a grading laboratory may describe the measurable shape and cutting characteristics differently.
That means you should not automatically assume that the exact words “Dutch Marquise” must appear on a grading report.
Is it a natural diamond?
Not necessarily.
“Dutch Marquise” tells you about the cut or style. It does not, by itself, tell you whether the diamond came from the earth or was grown in a laboratory.
If natural origin matters to you, verify that separately on the diamond’s grading documentation.
For a broader explanation of the difference, see lab-grown vs. natural diamonds.
Can a Dutch Marquise be lab-grown?
Yes.
There are lab-grown diamonds available in Dutch Marquise styles, and the Sitemap includes dedicated collections for 1-, 2-, 3-, 4-, and 5-carat Dutch Marquise lab-grown diamonds.
Dutch Marquise lab-grown diamonds
This is worth emphasizing because some shoppers see an unusual cut and assume it must be an imitation.
It does not.
A lab-grown Dutch Marquise can still be a genuine diamond. The distinction is that the diamond was grown in a laboratory rather than formed naturally underground.
GIA notes that laboratory-grown diamonds can be produced using methods such as HPHT and CVD and can be identified from natural diamonds through specialized gemological testing.
Why is the name “Dutch Marquise” confusing?
The name can give the impression that Dutch Marquise is an officially defined diamond category with one universally agreed shape.
The reality is more complicated.
Current sources do not use the term consistently. Some describe a Dutch Marquise as an elongated, angular or hexagonal specialty cut, while other sources use the term for an antique rose-cut style.
That means you should be careful with broad claims about its history or exact definition.
The most useful question when buying one is not:
“Does this seller call it a Dutch Marquise?”
Instead, ask:
“What exactly is the stone, and how has it been identified?”
The grading report, measurements, photographs, and seller’s description can tell you much more than the marketing name alone.
For a deeper look at the terminology and characteristics, see the Dutch Marquise diamond guide.
Dutch Marquise vs. regular marquise diamond
A Dutch Marquise should not automatically be treated as the same thing as a traditional marquise diamond.
A conventional marquise typically has a long, pointed outline with smoothly curved sides. Its silhouette is often compared with a boat or an eye.
Dutch Marquise styles can have a more angular, geometric outline, depending on the particular definition being used.
That difference can significantly change the personality of the stone.
A traditional marquise tends to look:
- Smooth and elongated
- Curved along the sides
- Pointed at both ends
- Classic and symmetrical
A Dutch Marquise style may look:
- More geometric
- More architectural
- Less traditionally curved
- Distinctive and unusual
If you are comparing the two, the marquise cut diamond guide is a useful companion resource.
How can you tell if a Dutch Marquise is genuine?
The best way is to verify the stone rather than relying on its name or appearance.
1. Ask for a grading report
For a significant diamond purchase, ask whether the stone has an independent grading document.
The report can help establish:
- Whether the stone is diamond
- Whether it is natural or laboratory-grown
- Carat weight
- Color
- Clarity
- Measurements
- Other identifying characteristics
GIA explains that laboratory-grown diamonds can be identified using advanced testing and that its reports distinguish laboratory-grown diamonds from natural diamonds.
2. Verify the report number
Do not simply accept a screenshot or photograph of a certificate.
If a grading report is provided, check the report number through the issuing laboratory’s own verification system where available.
The information should correspond with the stone you are being offered.
3. Check whether it is natural or lab-grown
If you specifically want a natural diamond, make sure the documentation confirms natural origin.
If you are happy with a lab-grown diamond, make sure it is clearly disclosed as laboratory-grown.
Neither option makes the stone “fake.” They are different categories of diamond based on origin.
4. Look at the actual stone
A grading report is important, but you should also evaluate the stone itself.
Look at:
- The outline
- Symmetry
- Faceting
- Proportions
- Face-up appearance
- Any visible inclusions
- How the stone handles light
A specialty cut does not automatically guarantee a particular appearance simply because it has a certain name.
Does a grading report say “Dutch Marquise”?
Not necessarily.
This is one of the most important points for buyers.
Specialty diamond names can be used commercially, while laboratories describe the stone using standardized or descriptive terminology based on what they observe and measure.
For example, one current source reports an IGI document using “Hexagonal Modified Brilliant” rather than the trade name “Dutch Marquise.”
So seeing a different shape description on a report is not automatically evidence that the diamond is fake.
Instead, compare the report’s description and measurements with the stone being sold.
Can a Dutch Marquise be fake?
Yes, in the same sense that any diamond-looking stone can be fake.
The important distinction is between diamond, lab-grown diamond, and simulant.
| Stone type | Is it diamond? | Natural? |
|---|---|---|
| Natural Dutch Marquise diamond | Yes | Yes |
| Lab-grown Dutch Marquise diamond | Yes | No |
| Moissanite in a Dutch Marquise-style shape | No | No |
| Cubic zirconia in a Dutch Marquise-style shape | No | No |
A seller could theoretically cut a simulant into almost any shape. Therefore, the phrase “Dutch Marquise” alone cannot prove that the material is diamond.
That is why independent documentation matters.
Are Dutch Marquise diamonds rare?
This depends heavily on what the seller means by “Dutch Marquise.”
Some current sources describe the cut as rare or highly specialized, while others show modern lab-grown production and availability.
So it would be misleading to assume that every Dutch Marquise is an extremely rare antique diamond.
If a seller claims that a particular stone is an antique or historically significant Dutch Marquise, ask for evidence supporting that claim. The age and provenance of a diamond are separate questions from whether its cut is genuine.
Should you buy a Dutch Marquise diamond?
If you like the shape, there is no reason to avoid a Dutch Marquise simply because the name is unfamiliar.
It can be an interesting choice for someone who wants something less conventional than a standard round, oval, or traditional marquise.
Before buying, focus on the things that actually matter:
- Confirm that the material is diamond.
- Determine whether it is natural or lab-grown.
- Review the grading documentation.
- Compare the report with the actual stone.
- Evaluate the shape and proportions rather than relying only on the name.
- Buy from a seller willing to clearly disclose what the stone is.
If you are shopping specifically for a lab-grown option, you can also compare available Dutch Marquise lab-grown diamonds by size.
Frequently Asked Questions
Are Dutch Marquise diamonds real?
Yes. A Dutch Marquise can be a genuine diamond. “Dutch Marquise” refers to a cut or style rather than a separate gemstone material. The stone can be natural or laboratory-grown.
Is a Dutch Marquise a natural diamond?
Not automatically. Dutch Marquise describes the cut, not the diamond’s origin. Check the grading documentation to determine whether a particular stone is natural or laboratory-grown.
Are lab-grown Dutch Marquise diamonds real?
Yes. A laboratory-grown Dutch Marquise can be a genuine diamond. GIA states that laboratory-grown diamonds have essentially the same chemical composition, crystal structure, optical properties, and physical properties as natural diamonds.
Is Dutch Marquise the same as a regular marquise?
Not necessarily. A traditional marquise generally has a smooth, curved, boat-like outline, while Dutch Marquise terminology is often used for a more angular specialty shape. Because the term is not consistently standardized, examine the actual stone and its measurements rather than relying only on the name.
Why doesn’t my diamond certificate say “Dutch Marquise”?
That can be normal. Grading laboratories may use descriptive or standardized shape terminology instead of a seller’s trade name. The report’s measurements and shape description are more important than whether the exact marketing name appears.
How do I know if a Dutch Marquise is fake?
Ask for independent grading documentation and verify the report. If there is no documentation for a significant purchase, consider having the stone examined by a qualified gemological laboratory. Visual appearance alone is not a reliable way to distinguish a diamond from every possible simulant or to determine whether a diamond is natural or laboratory-grown. GIA recommends laboratory testing for definitive identification.
Are Dutch Marquise diamonds worth buying?
They can be, especially if you prefer an unusual geometric shape. The important thing is to evaluate the individual diamond rather than paying a premium simply because it carries the Dutch Marquise name. Verify the material, origin, documentation, proportions, and appearance before buying.
