Finding the best places to buy lab-grown engagement rings looks very different today than it did a few years ago.
As lab-grown diamonds have become more widely available, buyers now have access to larger diamonds and higher grades at much lower prices. In many cases, a comparable lab-created diamond costs only a fraction (generally 70 to 90% cheaper) of what a natural diamond would cost.
However, once the search begins, another decision quickly comes into focus.
Not every retailer approaches lab-grown diamonds the same way. Some focus almost entirely on lab-created stones, while others offer both natural and lab-grown diamonds. As a result, buyers often have very different shopping experiences depending on where they start.
That’s also where the differences between retailers become easier to spot.
Price certainly matters. However, certification standards matter too. In addition, diamond quality, inventory selection, shopping tools, customer support, and customization options can all influence the overall experience.
For that reason, we looked beyond pricing when creating this list.
To make the search easier, we reviewed five retailers that approach lab diamond engagement rings from different angles. While some prioritize selection, others focus on a narrower specialty. Meanwhile, a few attempt to balance value, education, flexibility, and ongoing support throughout the buying process.
How We Selected These Retailers for Our Best Places to Buy Lab-Grown Engagement Rings List
Buying a lab-grown engagement ring often starts with price.
After all, lab-grown diamonds can cost significantly less than comparable natural diamonds. That price difference is one reason demand has grown so quickly in recent years.
However, a lower price doesn’t automatically mean a better purchase.
On paper, two lab-grown diamonds can appear very similar. Once you start looking closer, though, differences in certification, quality, and overall value often begin to emerge.
Because of that, we looked at much more than pricing when putting together this list of the best places to buy lab-grown engagement rings.
A good diamond is only one piece of the equation. We looked at what happens after the initial search, too, because buying the ring is only part of the experience.
At the same time, we looked at how much freedom each retailer gives buyers throughout the process. After all, not everyone starts their search with the same priorities or the same idea of what the finished ring should look like.
Some shoppers know they want a lab-grown diamond from the beginning. Meanwhile, others still want the opportunity to compare lab-grown and natural diamonds before making a final choice.
Because of that, retailers that provide more information, guidance, and transparency often create a smoother shopping experience.
Before taking a closer look at each company, here’s a quick overview of the retailers featured in our list of the best places to buy lab-grown engagement rings.
A Quick Comparison
| Retailer | Best For | Lab-Grown Selection | Diamond Options | Design & Expert Support | Overall Value |
| Rare Carat | Overall Lab-Grown Engagement Ring Experience | Extensive | 1.5M+ Natural & Lab-Grown Diamonds | 100+ GIA-Certified Gemologists | Excellent |
| 1 Carat Lab Diamonds | Focused 1-Carat Lab-Grown Shopping | Focused | 1-ct Lab-Grown Only | Moderate | Good |
| Mark Broumand | Custom Engagement Ring Designs | Moderate | Natural & Lab-Grown Diamonds | Moderate | Fair |
| Ascot Diamonds | Personalized Diamond Buying Experience | Moderate | Natural & Lab-Grown Diamonds | Moderate | Fair |
| James Allen | Somewhat Large Online Inventory | Large | Natural & Lab-Grown Diamonds | Limited | Fair |
1. Rare Carat – Overall Best Place to Buy Lab-Grown Engagement Rings
Lab-grown or man-made diamonds have changed what’s possible for many engagement ring buyers.
A budget that once covered a smaller natural diamond can now stretch much further in the lab-grown market. Larger carat weights, higher color grades, and stronger clarity grades have become much more attainable.
That’s one reason Rare Carat stands out among the best places to buy lab-grown engagement rings.
Some buyers already know they want a lab-grown diamond before they begin shopping. Others start there but still want to compare natural and lab-grown options before making a final decision. Rare Carat works well for both approaches because it gives buyers access to both categories from the start.
Still comparing the best places to buy lab-grown engagement rings? Read this article for a closer look at Rare Carat’s selection, pricing, and overall buying experience.
More On the Brand
Furthermore, every diamond available through Rare Carat is independently certified by respected laboratories such as GIA, IGI, or GCAL. That helps remove much of the uncertainty early in the process and allows buyers to focus on the ring itself rather than the credibility of the diamond.
The platform also makes researching diamonds much easier. Buyers can narrow options using filters for carat weight, color, clarity, cut quality, diamond origin, budget, and other preferences. Meanwhile, the Rare Carat Report helps identify strong value among available diamonds.
One advantage of shopping this way is flexibility. Many buyers start their search thinking they want a lab-grown diamond. Then, after comparing different options, they decide to explore both categories. Rare Carat keeps that flexibility open from the start by showing both natural and lab-grown diamonds so buyers can compare everything properly before settling on a final choice.
Selection is another area where Rare Carat, one of the best places to buy lab-grown engagement rings, performs particularly well. Buyers can browse more than 1.5 million natural and lab-grown diamonds, along with thousands of engagement ring settings and fine jewelry designs.
For many shoppers, seeing the actual diamond before buying is equally important. After all, an engagement ring is a purchase most people expect to keep for a lifetime. That’s one reason most diamonds on the website come with high-resolution images and 360° videos. Buyers can examine the diamond more closely and get a better sense of what they’re actually purchasing before placing an order.
At the same time, buyers aren’t left to interpret every specification on their own. More than 100 GIA-certified gemologists are available to answer questions, explain grading details, and help shoppers evaluate different diamonds before moving forward.
How Rare Carat Lab-Grown Engagement Ring Pricing Compares
| Retailer | Price* (14K White Gold Solitaire Engagement Ring, 1 ct Lab-Grown Diamond) | Rare Carat Everyday | Rare Carat On Sale | Max You Save |
| James Allen | $2,450 | ~$1,795 | from $1,495 | $955 (39% less) |
| Ascot Diamonds | $2,750 | ~$1,795 | from $1,495 | $1,255 (46% less) |
| Mark Broumand | $2,950 | ~$1,795 | from $1,495 | $1,455 (49% less) |
| 1 Carat Lab Diamonds | $2,250 | ~$1,795 | from $1,495 | $755 (34% less) |
*Pricing varies based on diamond quality, ring style, metal choice, and overall design specifications.
⚡ Currently live on Rare Carat: 1ct G VS1 diamonds from $395 during their 4th of July Sale (up to 40% off). Comparable diamonds at many competing retailers often sell for significantly more, making it worthwhile to check Rare Carat before purchasing elsewhere.
Lab diamonds already offer a pricing advantage compared with natural diamonds. Even so, pricing can still vary significantly from one retailer to another. Lower prices don’t mean much if buyers have to sacrifice selection or support. Rare Carat generally does a good job of balancing all three.
Pros
- What really stands out first is how buyers aren’t forced to pick a direction too early. You can look at natural and lab-grown diamonds side by side, which makes it easier to understand what actually feels right rather than deciding in a vacuum.
- Then there’s the pricing side of things. The tools on the platform don’t just show numbers — they help make sense of where value is actually sitting, and in many cases, that can mean savings of up to around 40%.
- It also helps that you’re not comparing diamonds blindly. Being able to stack options next to each other makes the differences feel clearer, especially when a lot of stones look similar at first glance.
- And even after certification from GIA, IGI, or GCAL, every diamond still goes through Rare Carat’s own two-step verification. That extra layer quietly adds reassurance without making the process feel complicated.
- When it comes to designing the ring, you’re not really stuck working around fixed templates. Instead, there’s enough flexibility to adjust things so it actually matches your personal style. It feels more like building something than choosing from a fixed catalog.
- Even the buying experience itself feels more supported. With shipping insured, returns made simple, and a money-back guarantee in place, there’s less pressure sitting on the decision.
- And finally, the feedback from buyers reinforces that experience with more than 7,000 five-star reviews across Google and Trustpilot.
Cons
- Buyers who prefer paying with cryptocurrency will need to use another payment method.
- Shipping is currently limited to customers in the United States and Canada.
2. 1 Carat Lab Diamonds
This entry among the best places to buy lab-grown engagement rings takes a much more focused approach than most broader retailers do.
Rather than covering every carat size and style, the experience stays centered on 1-carat lab-grown diamonds. Because of that, buyers who already know what they’re looking for can move through options more quickly, without getting pulled into unrelated categories.
At the same time, the browsing process feels more streamlined. There’s generally less time spent scrolling through specifications that don’t really match the buyer’s intent, which can make the experience feel a bit easier to manage.
However, that same focus also brings a clear limitation. Since the selection is fairly focused, there’s also less flexibility to compare different diamond sizes or change direction once you’ve already started browsing.
So it tends to work best for buyers who already know they want a 1-carat lab-grown diamond, while it can feel a little limiting for anyone still figuring out what they prefer.
Pros
- To begin with, everything stays centered around 1-carat lab-grown diamonds, so buyers can narrow things down quickly without extra noise.
- In addition, the browsing feels more focused, with fewer unrelated options getting in the way.
- As a result, those who already know their preferred size can move through choices a bit more smoothly.
Cons
- However, that same focus also means there’s less space to compare different diamond sizes.
- On top of that, changing direction halfway through the search can feel a bit more restricted compared to larger retailers.
- Even though it is one of the best places to buy lab-grown engagement rings, overall, it may not suit buyers who are still in the early stages of figuring things out or exploring different directions.
3. Mark Broumand
Not every engagement ring search starts with the diamond.
For some buyers, the design comes first. They already have a certain look in mind and want the ring itself to drive the decision.
That’s where Mark Broumand tends to stand out. The shopping experience feels more centered on design details and customization than on working through a huge inventory of diamonds.
For some shoppers, that’s a major advantage. After all, the ring itself is often just as important as the diamond sitting in it.
At the same time, the shopping experience feels a bit more selective. You’re not constantly jumping between hundreds of similar options, which naturally shifts more attention toward the ring styles themselves.
Of course, that approach comes with a trade-off. Buyers who like comparing a large number of diamonds before finding one of the best places to buy lab-grown engagement rings and making a decision may find fewer options available here than they would at some larger retailers.
Then again, for shoppers who care more about the overall design of the ring, that may not be a major concern.
Pros
- For many buyers, the ring design is the main attraction here rather than the diamond inventory.
- Meanwhile, the smaller selection can make browsing feel less overwhelming and easier to work through.
- Because of that, it can feel easier to concentrate on the details that shape the final look of the ring.
Cons
- However, buyers who enjoy looking through a large number of diamonds may find fewer options to compare here.
- Meanwhile, the selection isn’t as broad as what some of the larger online retailers offer.
- So if comparing inventory is a big part of the shopping process, other retailers may provide more room to explore.
4. Ascot Diamonds
Some buyers want to do all the research themselves. Others would rather have a little help narrowing things down. That’s where Ascot Diamonds enters the conversation among the best places to buy lab-grown engagement rings.
After all, not everyone enjoys spending hours comparing diamond specifications, certification details, and ring settings on their own.
Because of that, the experience feels more conversational than inventory-driven. Rather than working through an endless number of options, buyers are often guided toward a smaller group of diamonds and settings that fit their budget and preferences.
At the same time, lab-grown engagement rings remain a significant part of the offering. That gives buyers access to many of the cost advantages that have helped make lab-grown diamonds increasingly popular, while still keeping quality and certification in focus.
However, buyers who enjoy researching dozens of diamonds before making a decision may find the experience a bit different from some of the larger online retailers. There simply aren’t as many options to compare side by side.
Still, for shoppers who value guidance as much as selection, Ascot Diamonds offers a more hands-on approach than many competitors.
Pros
- For starters, there tends to be a bit of support throughout the decision-making process than buyers might expect elsewhere.
- At the same time, the smaller selection can make it easier to focus on the options that actually fit the brief.
- As a result, first-time buyers may find the process less intimidating and easier to work through.
Cons
- However, the inventory is smaller than what some of the best places to buy lab-grown engagement rings can offer.
- At the same time, shoppers who enjoy extensive comparison shopping may want more options available.
- So buyers focused primarily on selection size may prefer a larger retailer.
5. James Allen
Few names come up as often as James Allen when buyers start researching the best places to buy lab-grown engagement rings.
A big reason is visibility. The retailer has been part of the online diamond space for years, and many shoppers encounter it early in their search.
At the same time, James Allen offers a fairly large selection of lab-grown engagement rings and loose diamonds. For buyers who enjoy researching options independently, that can be a positive. There’s usually plenty to compare before making a decision.
Of course, more options aren’t always a benefit. For some shoppers, having so many diamonds to sort through can make the decision take longer than expected.
Still, for buyers who prefer taking a self-directed approach and spending time comparing different diamonds, James Allen remains a familiar option in the lab-grown engagement ring market.
Pros
- To start, there are plenty of lab-grown diamonds available to explore and compare.
- Meanwhile, buyers who enjoy researching on their own will have no shortage of options to work through.
- As a result, the platform can work well for shoppers who prefer a more independent buying experience.
Cons
- However, working through a larger inventory can sometimes make decisions feel more time-consuming.
- At the same time, buyers looking for ongoing guidance may find themselves doing more of the research alone.
- So shoppers who prefer a more hands-on experience may gravitate toward other retailers.
A Look at All Companies Featured in This List of Best Places to Buy Lab-Grown Engagement Rings
| Retailer | Shopping Experience | Lab-Grown Selection | Expert Support | Typical Starting Price | Best For |
| Rare Carat | Comparison-driven with expert guidance | Extensive & Certified | Extensive (100+ GIA-certified gemologists) | From ~$1,495 | Overall lab-grown engagement ring experience |
| 1 Carat Lab Diamonds | Focused and straightforward | Focused | Good | From ~$1,750 | Buyers looking for 1-carat lab diamond rings |
| Mark Broumand | Design-focused | Moderate | Moderate | From ~$2,200 | Buyers who prioritize a smaller ring collection |
| Ascot Diamonds | Moderately Guided | Moderate | Moderate | From ~$2,300 | Buyers who prefer a traditional buying experience |
| James Allen | Self-directed online shopping | Somewhat Large | Limited | From ~$2,450 | Buyers who enjoy researching and comparing lots of options |
*Prices vary based on diamond quality, ring setting, metal choice, and overall design specifications.
Final Thoughts on the Best Places to Buy Lab-Grown Engagement Rings
Choosing between the best places to buy lab-grown engagement rings usually comes down to more than just price.
More often, it comes down to finding the place that gives you enough information, enough flexibility, and enough confidence to make the right decision for your situation.
After all, the ring is something you’ll hopefully wear for years. Taking a little extra time to compare options, understand the differences between diamonds, and shop with a retailer that supports the process is usually time well spent.
For buyers looking for the strongest overall balance of selection, value, transparency, and expert guidance, Rare Carat stands out as the overall choice. One of the biggest advantages is the freedom to look at both natural and lab-grown diamonds in the same place. Add in certified inventory, useful shopping tools, and access to GIA-certified gemologists, and the process feels far more informed from start to finish.
And perhaps most importantly, it gives buyers the freedom to make an informed decision rather than pushing them toward a particular path from the start. That’s a meaningful advantage when shopping for an engagement ring that will likely be one of the most important jewelry purchases they’ll ever make.