James Allen Review Intro

James Allen Lab-Grown Diamond Review (Updated 2022)

James Allen

USD 930









People & Planet



  • Unbeatable unique shopping experience
  • 24/7 support by certified gemologists
  • 30-day money-back guarantee
  • Select your own diamonds and settings
  • Free and fully insured international shipping


  • Prices are slightly higher than some of the lowest priced lab-grown diamond sellers
  • Return and exchange period shorter than what that a few competitors are offering (but still among the most generous)
  • Not fully focused on lab-grown diamonds and doesn't advertise lab-grown diamond benefits

Last Updated on February 21, 2023 by LabGrownCarats

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Summary of James Allen Review

James Allen is one of the pioneers in online direct-to-consumer diamond sales. They have quickly risen to become one of the biggest online brands, and customers love them for their huge selection, competitive prices, and great customer service. In our review of James Allen’s lab-grown diamonds, you will learn why.

James Allen sells both mined and lab-created diamonds. However, there are good reasons why we still choose to not only review James Allen but also highly recommend them, including:

  • A phenomenal and unrivaled shopping experience
  • 24/7 superior service and purchase guidance
  • Competitive prices and a huge selection of both mined and lab-grown diamonds
  • Lifetime warranty and risk-free 30-day full refunds and exchanges
  • Free international and fully insured shipping

In our updated 2022 James Allen lab-grown diamond review, we re-visit the diamond buying experience. We find that they retain their top spot, and we fully recommend buying at James Allen without any hesitation. James Allen still tops our list of the best places to buy lab-grown diamond jewelry in 2022.

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James Allen Lab Grown Diamonds:

James Allen’s Company History

James Allen was founded in 2006 by four industry heavyweights with a combined 60+ years of experience in the diamond and jewelry business. James Allen was created to marry their deep industry knowledge with expertise in online direct-to-consumer sales and unparalleled customer service powered by technology and a pioneering online shopping approach.

Until 2017 James Allen was the largest privately held online diamond and bridal jewelry retailer in the world when Signet, the diamond conglomerate, acquired it. They clearly saw value in adding the leading online diamond vendor to their portfolio. And as you can read in our James Allen review below, there is a good reason for that. We’re happy to report that the new ownership has not in any way harmed the customer service and value, and JamesAllen.com continues to be the leading online diamond seller.

Next in our James Allen review, we’ll dive deeper into the shopping experience.

James Allen’s Unique online shopping experience

James Allen has led the online diamond shopping experience by making it possible to scrutinize every single diamond detail right from your computer or smartphone without leaving the couch. Contrary to what you might think, comparing stones side by side on your screen gives a much more true and honest view of the stone you’re buying and makes it possible to compare diamonds side by side. This is a game-changing improvement over the shopping experience at physical stores.

When you shop for diamonds at a store, you can be sure that the lighting is anything but natural and will make any diamond sparkly much more than in broad daylight. And you won’t be able to zoom in and look through stones at your own leisure like you can on JamesAllen.com (but you will be pressured to purchase a sub-par diamond by commission-incentivized sellers).

360-degree HD views

At James Allen’s website, you can enjoy full 360-degree high-resolution 3D views of every single stone (though it’ll take you a while to view them all). You can see all stones magnified 40X, so you are sure not to miss any details or imperfections (read our buying guide to learn why you might actually want some imperfections).

In addition, you can now also try their “Virtual Ring Sizer” so you are sure you’ll end up with the right ring and diamond size (and if you don’t, just avail of their free 30-day exchanges and refunds).

Virtual Ring Sizer on James Allen's website - James Allen Review
Use four different methods to ascertain your ring size and ensure you get a perfectly sized ring

Live-chatting with trained gemologists at James Allen

While examining the diamonds, you can chat 24/7 with their non-commissioned certified gemologists and ask any questions. You can spin and highlight features of the diamond, and the gemologist can follow along. This way, you can have a fully interactive discussion about the details of their stones. Who needs to deal with a pushy diamond salesperson in a store now?

If you do happen to be in either Washington D.C. or New York City, you can visit any of their two physical stores. Still, there really is no reason since their full inventory is only available online. Their online shopping experience is much better than in any physical store (and any other online jeweler).

In our James Allen review, we have been very impressed by the shopping experience, which is one of the best, if not the best, diamond shopping experiences we have reviewed.

Competitive prices at James Allen

Lab-grown diamond prices are typically 60-80% lower than mined equivalents. So when you shop James Allen’s lab-created selection, you are sure to save – or be able to upgrade with the same budget! And doing better for the environment and society!

Compared to some of the lab-grown only diamond sellers, James Allen’s prices are typically slightly higher than the lowest-priced jewelers. But this minor premium is what you pay to have access to trained gemologists 24/7 and their truly unique shopping experience.

This is a small price to pay to be able to inspect your diamond investment in the finest details and to be 100% certain of every single aspect of your diamond purchase (mined as well as lab-created). The negligible cost difference ensures that you’ll end up with the perfect diamond.

Compared to traditional diamond and jewelry sellers, you’ll find that James Allen offers some of the absolute best prices both online and offline, and nowhere will you find the same level of service and certainty about your diamond purchase.

James Allen’s lab-grown diamond selection

Since James Allen sells both mined and lab-created diamonds, they naturally have a broader selection than most sellers who are solely focused on lab-grown diamonds. At the time of writing, they have close to 450,000 in their inventory. Their selection of lab-created diamonds is smaller at around 50,000, but it’s still among the largest inventories of lab-grown loose diamonds on the market. And it’s more than enough to guarantee that you will be able to find the perfect match.

Ignoring a few specialized sellers, James Allen still offers one of the widest selections of lab-created diamonds, and it will not be a problem finding a diamond that matches your specific 4Cs.

One area where James Allen has a clear advantage is its unmatched variety and selection of fancy-colored diamonds (blue, green, pink, yellow, and more). However, the selection of lab-grown fancy-colored stones is limited.

Another thing to note is that all of their colorless and fancy yellow lab-grown diamonds have not received any post‑growth treatment or color enhancement. The practice is debated in the diamond industry, but many prefer their lab-created diamond not to be treated (we don’t think it’s a problem, but treatment could lower potential future resale value).

When it comes to jewelry settings (rings, studs, etc.) James Allen far surpasses most competitors, and their wide-ranging ability to customize (plus throwing in free engraving) puts them ahead of the pack.

Free shipping and free returns at James Allen

James Allen offers free FedEx Overnight shipping on every order and free return shipping on all orders (currently US only). Orders are shipped securely overnight following a 7-10 day production time and offer flexible delivery options to avoid ruining any surprises.

Shipping is fully insured, and order delivery is required to be signed by the receiver. Returns are completely hassle-free using the same high shipping standard, with the option to send through a FedEx-staffed shipping station if you need any assistance.

30-day money-back guarantee at James Allen

James Allen offers risk-free 30-day full refunds and free exchanges. The process is straightforward, and they’ll help you through every step and guide you in case of an exchange.

With their risk-free money-back guarantee, you can shop confidently at James Allen, knowing that you can return any purchases. But, if you rely on their expert guidance, we doubt you’ll have to. Regardless, it’s nice to have peace of mind.

James Allen’s environmental and human impact

Since James Allen is not dedicated solely to selling lab-grown diamonds, these do not feature prominently on their website, nor do they devote space to detail the environmental and social footprints of their man-made diamonds.

That being said, the general benefits of lab-grown diamonds, of course, also apply to lab-created diamonds bought at JamesAllen.com. These include benefits to the local environment and communities by avoiding land and animal habitat disturbances and decreasing mineral waste. Human and workers’ rights violations, poor safety, political turmoil, and conflict are likewise not issues at diamond laboratories.

On a broader scale, the production of lab-grown diamonds requires only 1/7th of what diamond mining does, and the energy usage is, on average, 25 times lower, benefiting the global climate.

While not specified in our James Allen review, we must assume that clean energy is not wholly used to produce lab-created diamonds sold at James Allen, unlike the lab-grown diamonds Vrai uses. So there are still a few benefits that can still be reaped.

You can read more about all the benefits of lab-grown diamonds here.

Lab-grown diamond certification at James Allen

Lab-grown diamonds are graded and certified by the same laboratories and grading institutions as mined diamonds and use the same standards and procedures. You can, therefore, rest assured that your lab-created diamond is exactly the same as a mined diamond, and you can compare them like-for-like using the 4C grading system (read more about the 4Cs here).

All diamonds purchased through James Allen are graded and certified by IGI, AGS, and GIA, the highest-regarded diamond labs, so you can rest assured that you get exactly what you expect.

James Allen Lab-grown Diamond Review Verdict

Throughout our James Allen review, we have repeatedly been impressed by their superior customer service, unparalleled shopping experience and use of technology, and trained on-call gemologists to aid you through the buying process. This has not changed for our 2022 updated review.

While a few places, namely Clean Origin and Ritani (see James Allen vs. Ritani comparison), have slightly lower prices, James Allen is still priced extremely competitively. And the tiny premium you pay is worth it as you will almost certainly end up with the perfect stone that fits your exact needs.

James Allen Review Ring Box

We fully recommend buying your next diamond at James Allen, and we award them an impressive 5 stars out of 5 possible and find only insignificant infractions! Again in 2022, James Allen is our favorite lab-grown diamond jeweler!

Save 10% off select lab-grown diamonds at James Allen.
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James Allen reviews

Don’t just take our word for it. Customers have been buying at James Allen for years, and they continue to receive outstanding reviews online, which are closely aligned with the conclusions of our James Allen Lab-Grown Diamond Review. We, too, feel confident recommending James Allen for your next diamond and jewelry purchase.

James Allen Lab-Grown Diamond Review (Updated 2022) | james allen google reviews guide to buying a labgrown diamond engagement ring
James Allen Lab-Grown Diamond Review (Updated 2022) | james allen trustpilot guide to buying a labgrown diamond engagement ring 1

Does James Allen have any stores?

While James Allen has perfected the online diamond shopping experience, they do feature two showrooms. One is in the Georgetown neighborhood in Washington DC, while the other is in Manhattan, New York, NY. You can visit them at the following addresses, but you’ll need to book an appointment. James Allen partners with Jared for maintenance and repairs too.

Where are James Allen’s showrooms?

James Allen has two showrooms. Here are the addresses:

Washington, D.C. (Georgetown)
3109 M Street NW
Washington, D.C. 20007

New York City (Manhattan)
551 5th Ave
New York, NY 10176

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Need help?

When know that the task of buying lab-grown diamonds can be daunting. We are here to help you find the right diamond, the best place to shop or answer any questions you might have.
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