We are reader-supported. Buying through links on our site may earn us commissions.  Learn More.

Lab-Created Diamond Vs. Natural Diamond

How to decide whether a natural or lab-created diamond is best for you

By Michael Fried,

The topic of lab-grown diamonds is a bit of a contentious one. Lab diamonds have drawn a lot of hype, positive and negative, in recent years. Whether to buy lab-created or natural is a question you should, at the very least, pay some consideration to when shopping for a diamond.

Here’s what we’ll cover on this page:
Should You Buy a Lab Diamond or a Natural Diamond?
Are Lab-Grown Diamonds cheaper than Natural Diamonds?
Are Lab-Grown Diamonds a better value than Natural Diamonds?
Are Lab-Grown Diamonds a more ethical purchase than Natural Diamonds?
Do Lab-Grown Diamonds look like Natural Diamonds?
Are Lab-Grown Diamonds real?
Bottom Line Recommendation

Lab diamonds are different from natural diamonds in that they are artificially created – instead of naturally produced in the earth, like regular diamonds, they are man-made in a laboratory.

Fundamentally, this is the only difference. Lab diamonds look and feel just like natural diamonds. Industry experts and leading scientific publications, like Science Focus, agree. They’re available in all kinds of shapes and sizes, and if you had a lab diamond and natural diamond in front of you, it would be virtually impossible to tell the difference. They even have almost identical chemical structures.

Think You’re A Diamond Pro?

Both of these are beautiful 1.01ct H VS2 Excellent cut diamonds
One is lab created and costs $1,250
One is mined and costs $4,940
Can you tell which is which?
Choose the diamond you like better and see if you are a pro!

Pro Tip: If you are considering the pros and cons of lab-grown vs natural diamonds, James Allen has doubled down on the value offered by lab created diamonds. James Allen is offering 10% of the already fantastic pricing of their lab grown diamonds.

Despite all the similarities, there is a growing gulf in price, resale value and overall desirability for lab-created diamonds vs. natural diamonds.

A comparison between a G color lab-grown and natural diamond
The two pictures above are both G color VS2 clarity, similar carat weight and cut. If each were in front of you, it would be nearly impossible to tell, but one is a natural diamond, and one was grown in a lab.

Natural diamonds are created by nature, as a result of intense heat and pressure, formed over the course of billions of years. Lab-grown diamonds are created in a laboratory, often produced in just a matter of weeks. There is a tiny chemical difference between the two, as natural diamonds often contain a very small amount of nitrogen, while synthetic diamonds do not. This is the only inherent difference though – even the US Federal Trade Commission, or FTC, classes man-made diamonds as “real” diamonds, due to the gem’s carbon-based chemical makeup.

So how can you tell the difference between a lab diamond and a natural diamond?

Lab created diamond is always cheaper

There is no visible difference between the two. Even a professional gemologist will need specialized equipment to tell which is which. With magnification, a professional will be able to make out small contrasts in the inclusions of lab-grown vs. mined diamonds.

The best way to tell the difference is to check the diamond’s certification. Jewelers must declare whether a diamond is naturally or synthetically created, so as long as you shop with a reputable store, you will always have this information available. Pay attention to this information, as it will have a significant impact on the price and resale value of your diamond.

“A lab diamond doesn’t say I love you any less than a mined diamond says I love you.” Beryl Raff, Former CEO of Helzberg Diamonds as reported in JCK Online.

Should You Buy a Lab Diamond or a Natural Diamond?

If there is no visible difference between a lab-grown diamond and a natural diamond, which one should you go for?

It’s hard to answer this question for everyone, as different buyers have different priorities. If appearance is literally the only factor that matters to you, then it doesn’t matter if a diamond is man-made or natural. No one will notice unless you tell them. The growing popularity of them shows it well.

There are, however, some big differences, which should cause you to think twice when making your decision.

    Here are some lab-grown diamonds from James Allen:


The cost of lab diamonds is still in a constant flux. Just 4-5 years ago, we found lab diamonds on average 23-25% more expensive than natural diamonds. Today, lab diamonds are coming in significantly cheaper than natural diamonds. From 50-60% cheaper, or even more in some cases.

The difference is due to supply. Natural diamond supply is limited, due to the billions of years it takes for nature to create a diamond. Yet with synthetic diamonds, there is no cap on the supply, which drives the price lower and lower as supply goes up.

A comparison between a E color lab-grown and natural diamond
The image above is another example of how similar lab diamonds and natural diamonds look. It’s hard to tell the 0.58ct E/VS2 lab-created diamond on the left and the 0.51ct E/VS2 natural diamond on the right apart.

The price of lab-grown diamonds is falling at an alarming rate, and shows no signs of stopping or reversing. Take this into account when making your purchase – the same lab diamond bought for $1,000 today may be priced at a fraction of that amount in just one or two years.


The difference in resale value between natural and synthetic diamonds is even greater than the difference in price. While natural diamonds often retain around 50% of their initial value, lab-created diamonds are almost impossible to resell without accepting pennies on the dollar. You lose a massive percentage of its value the moment you make the purchase.

We also must consider how the cost of real diamonds vs. synthetic diamonds changes over time. With lab-created diamonds dropping in price, and natural diamonds historically rising in value, your synthetic diamond will almost certainly be worth less than a natural one of similar grade, even before considering the difference in resale value.

Zero resale value of lab created diamonds


Some may have concerns over the environmental and humanitarian repercussions of natural diamond mining processes. 

That’s not to say that natural diamonds are necessarily unethical. But it stands to reason that man-made diamonds offer more in the way of long-term sustainability than those pulled from the earth. 

There is some contention over this issue. In fact, the FTC warned a number of jewelers about making unsubstantiated claims of their jewelry being sustainable or eco-friendly.

A report from the Diamond Producers Association claims that natural diamonds are, in fact, better for the environment than synthetic diamonds, due to the carbon-intensive process of producing lab diamonds.

All in all, it appears there is not a consensus just yet on whether lab diamonds are actually a more sustainable option. 

See this article for a comprehensive guide on ethical issues in diamond buying.


A comparison between a E color lab-grown and natural princess cut diamond
1.01ct F/VS1 lab-created princess cut (on the left) vs. 1.00ct F/VS1 natural princess cut (on the right)

Lab diamonds and mined diamonds are, for the most part, identical to the naked eye. If you buy a ring with a lab-created diamond, it’s just about certain that no one will be able to notice, unless you tell them.

There can be some very small inclusions on lab diamonds that aren’t present in natural diamonds. It’s very rare for these inclusions to be visible unless using magnification tools.

In just about every case, a lab diamond will have the same brilliance and shine as a natural one, so if you’re primarily looking for a diamond that looks beautiful, lab diamonds can present a low-cost option without settling for a lower grade.

According to a CNN report based on July 2022 data “the number of engagement rings sold that featured a manufactured diamond jumped 52% compared to last year”

The Verdict: Which Diamond Should You Buy?

While diamonds generally should not be seen as an investment, there is also sense in purchasing a piece of jewelry that is likely to retain its value over the years. If this is a priority to you, opt for natural diamonds.

Don’t discount synthetic diamonds as an option. Couples who are strapped for cash may be able to find a beautiful ring that would otherwise be far out of their price range by going with a lab-created diamond. But just be aware that you may see the exact same diamond on sale for a fraction of the price in the future.

Pro Tip: When purchasing a lab-grown diamond, follow the same advice regarding the 4C’s we use. If you go overboard focusing on the best quality, you will be sacrificing on size too much. Once set in a ring, you can’t tell the difference in color/clarity between this 1.62ct diamond from Blue Nile and this 2.10ct stunner from James Allen. But you will certainly notice the size difference.

Are Lab-Grown Diamond Real? Lab Diamond vs Cubic Zirconia vs Moissanite

A lot of people refer to lab diamonds as “fake” diamonds, but this is not accurate. The carbon-based chemical composition of lab diamonds means they are in fact “real” diamonds – unlike cubic zirconia or moissanite.

These diamond simulants are also lab-created but are not composed of carbon atoms, and therefore are not real diamonds.

Unlike lab diamonds vs. natural diamonds, which are inherently identical in look, feel and hardness, there is a noticeable dropoff from a lab-created diamond to a simulant like cubic zirconia or moissanite.

Simulants do not have the same brilliance and sparkle as real diamonds. The refractive index of cubic zirconia is lower than a diamond, 2.2 vs. 2.42. Moissanite actually has a higher refractive index (2.65 – 2.69). The higher refractive index of moissanite means it gives off a vibrant colored reflection, in dazzling colors that is a little too much for some people.

There is also a difference in hardness. Diamonds score a perfect 10 on the Mohs scale of hardness, while moissanite is between 9-9.5, and cubic zirconia 8.

Like lab diamonds, both cubic zirconia and moissanite don’t carry much value and make for poor investments. However, there is a drop off in quality between lab diamonds and diamond simulants, as you are not actually getting a real diamond.

Frequently Asked Questions About Lab Diamonds vs Natural Diamonds

Find answers below to some of the frequently asked questions about lab diamonds.

Are lab-created diamonds good?

To the look, to the touch, and chemically, lab-created diamonds are almost identical to “real” or natural diamonds. They are also cheaper, and some consider them a more environmentally conscious choice. However, the long term value of lab diamonds is significantly lower than natural diamonds.

Are lab diamonds as strong as natural diamonds?

Lab diamonds are as strong and as hard as natural diamonds, both scoring a 10 on the Mohs scale of hardness.

Can a jeweler tell if a diamond is lab-created?

For even jewelers or professional gemologists, it’s often not possible to tell the difference between a natural and a lab-created diamond with the naked eye. But with specialized equipment, a gemologist may be able to tell small inclusions that identify a lab-created diamond.

Will lab diamonds pass a diamond tester?

Yes. Lab diamonds are real diamonds, made from pure crystallized carbon, and will pass any tests to prove such.

Do lab diamonds shine like natural diamonds?

Yes, lab diamonds carry the same shine and sparkle, the same color and clarity as mined diamonds. There is no difference, other than the creation process.

How much is a 1 carat lab diamond?

The cost of lab diamonds can fluctuate, but on average, a 1 carat lab diamond will cost between $1,000-$2,000, or more depending on its grade.

Are lab-grown diamonds GIA certified?

Lab diamonds are graded on the same scale of Cut, Clarity, Color and Carat weight as natural diamonds. The GIA does certify lab-grown diamonds, however, since they have just started, they aren’t that many of them. We recommend IGI certifications for lab diamonds, as they also give specific grades for Color and Clarity and are much easier to find.

What is the difference between a lab-created diamond and a cubic zirconia?

A lab-created diamond is a real diamond, whereas a cubic zirconia is not. A cubic zirconia does not contain carbon, so does not qualify as a diamond. A simulant like cubic zirconia is less hard and does not look quite the same to the naked eye, unlike a lab diamond, which has the same look and physical properties as a natural diamond.

Bottom Line

Lab-created diamonds are in fact real diamonds and offer the same brilliance, sparkle, and shine of a natural, mined diamond. If you want a cut-price diamond that looks exactly the same, lab diamonds are an option to consider. But be aware of the long-term value you’re losing when choosing a lab diamond over a natural diamond. The declining value of lab diamonds and very low resale value means one can easily end up with a case of buyer’s remorse.

Bottom Line Recommendation:

There is no question that lab-created diamonds are enticing. You are clearly getting more bang for your buck. The question is, will it stand the test of time the way natural diamonds have?

Key Topics We Cover
There is no physical difference between a natural and lab-grown diamond. They are both "real" diamonds, whatever that means.
Lab-grown diamonds have plummeted in value in the last several years. The lab-grown diamond purchased today may be worth a fraction of its current value in the future.
It is much easier to find an eye-clean, well cut lab-grown diamond.
Having trouble navigating the diamond buying minefield? We are happy to help. CONTACT US

Here are more lab-grown topics to browse:

James Allen James Allen is the leader in online diamond sales. Their imaging technology is the same as inspecting a diamond with a jeweler's loupe. They have the largest exclusive loose diamond inventory online and fantastic prices. They also have the nicest collection of lab created diamonds online. For a limited time Save 25% during James Allen Holiday Sale!
What we love about them:
  • No questions asked returns within 30 days of shipment. James Allen will send you a paid shipping label to return the ring.
  • Lifetime Warranty
  • Free International Shipping
  • Free prong tightening, repolishing, rhodium plating and cleaning every 6 months
  • Provide insurance appraisals
  • One free resizing within 60 days of purchase
  • Free ring inscriptions
  • Best-in-class high quality imagery of all diamonds in stock
  • 24/7 Customer Service
  • Best-in-class packaging
Arrow down
Arrow up

Still afraid of getting ripped off?

Before you buy a diamond, get personal buying advice from industry veterans. We'll help you get the best diamond for the money.

Ask your diamond purchase question here

  • Hidden
  • This field is for validation purposes and should be left unchanged.

DISCLAIMER: We don't use your email for marketing. Period.

You Might Like

  • Diamond Prices: A Complete Guide

    Buying a diamond is confusing. On the surface, it seems like nothing makes sense. Take a look at this 2 carat diamond from James Allen and compare it

  • Best Places to Buy Diamond Engagement Rings

    We’ve visited and reviewed many diamond retailers, online and offline. In the process, we’ve come across several diamond engagement ring vendors

  • 1 Carat Diamond Ring Buying Guide

    1ct round cut petite side-stone diamond ring in yellow gold from Blue Nile A wide range of 1 carat diamonds exist both in online markets and local

About the author

Michael Fried Michael Fried Mike Fried has over 25 years experience in the diamond industry working with Leo Schachter Diamonds, Moshe Namdar Diamonds, and joining The Diamond Pro in 2007. He is recognized as an industry expert and has been quoted in publications such as Us, People, Page Six, The Next Web and more.
Please enter your email address to receive your personal one-time use unique coupon code:

Here is your coupon code: GFDSF3GF