10 Smart Ways to Save Money on a Lab-Grown Diamond Engagement Ring

Buying an engagement ring doesn’t have to mean spending a fortune. With lab-grown diamonds now up to 80% less expensive than mined ones, it’s easier than ever to find a stunning, ethical ring that fits your budget.

An engagement ring is a significant purchase, but a meaningful ring does not require overpaying. The right compromises can lower the price while protecting the qualities you will actually notice.

This guide explains ten ways to get better value from the diamond, setting, metal, seller, and timing.

These recommendations reflect our work comparing live diamond prices and grading reports, as well as buying, returning and inspecting lab-grown diamond jewelry. The goal is not simply to find the lowest number: it is to avoid paying for grades you cannot see while protecting cut quality, appearance and buying terms.

These are the biggest opportunities:

1. Why Lab-Grown Diamonds Are the Smartest Way to Save

Lab-grown diamonds have the same carbon crystal structure and broadly the same physical and optical properties as mined diamonds. Cutting and polishing follow the same principles. Comparable lab-grown diamonds commonly cost 60–80% less, giving you the largest single saving in this guide.

Did you know, however, that lab-grown diamonds are not only better for your wallet but also for the environment?

They also avoid diamond mining. When grown using renewable electricity, lab-grown diamonds can make a particularly strong environmental case.

New to the concept of lab-grown diamonds? Read all about lab-grown diamonds and what you need to know.

2. Study the 4C’s and Know Where to Compromise

Lab diamond engagement ring

Understanding a diamond’s cut, color, clarity, and carat is the foundation of smart diamond shopping.

We emphasize cut quality over anything else. It has the greatest effect on brilliance and sparkle. Once the diamond is well cut, you can often save on clarity, color, and carat weight without giving up the look you want.

Pro tip: For a round brilliant, begin with the laboratory's top cut grade, then inspect the proportions and video. Fancy shapes need more visual judgment because not every laboratory assigns them an overall cut grade.

Learn more about the diamond 4 C’s

3. Choose a Near-Colorless Diamond

The diamond color scale runs from D (colorless) to Z (noticeable yellow or brown). D–F grades command a premium. Near-colorless G–J diamonds can offer better value, and the setting metal and diamond shape affect how much warmth you notice.

But here’s the secret: You can save significantly by opting for diamonds in the near-colorless range. Let’s break down the best way to get the most value from your lab-grown diamond.

How Much Can You Save by Downgrading on Diamond Color?

The savings can be substantial, but they change with inventory. Compare F and H stones with the same weight, shape, clarity, grading laboratory, and cut quality. Moving from colorless to near-colorless can reduce the price without an obvious visual difference once the diamond is set.

Pro tip: Prioritize cut and brilliance over color perfection.

Source: GIA color-grading scale.

4. Pick “Eye-Clean” Clarity for Maximum Value

Understanding Diamond Clarity:

Diamond clarity refers to the presence of internal flaws (inclusions) or surface blemishes within the stone. Diamonds are graded on a clarity scale ranging from Flawless (F), the highest grade, to Included (I3), the lowest. The fewer and less noticeable the inclusions, the higher the clarity grade—and the higher the price.

Eye-Clean Diamonds: The Sweet Spot for Clarity

The good news is that a diamond doesn’t need to be flawless or even near the top of the clarity scale to look stunning. For most buyers, the goal should be an “eye-clean” diamond—one where no inclusions or blemishes are visible to the naked eye.

Pro tip: VS1 or VS2 is a practical starting range, but the grade does not guarantee that every diamond is eye-clean. Inspect the type, size and position of the inclusions.

Slightly Included Diamonds: A Budget-Friendly Option

However, if you’re looking to save more, then consider a Slightly Included (SI) quality diamond. If you are lucky or diligent, you might be able to find a Slightly Included diamond that is eye-clean without inclusions or blemishes that impact light reflection.

If you do, you can save a huge chunk of money. Depending on the type of inclusions, you most likely won’t be able to see the imperfections when the diamond is mounted in its setting. If it’s eye-clean and the other 4 Cs align, you can easily go for an SI-quality diamond.

Avoid going too low on the clarity scale—diamonds in the Included (I1, I2, I3) range can have noticeable flaws that affect both appearance and light reflection. For SI diamonds, inspect the stone carefully and work with trusted vendors to ensure you’re getting the best deal.

5. Go For a Lab-Grown Diamond Carat Weight Just Below the Standard Sizes

Understanding Diamond Carat:

Diamond carat refers to a diamond’s weight rather than its size, though the two are closely linked. Carat weight is one of the most significant factors affecting a diamond’s price, and certain “magic sizes” (like 1.0, 1.25, 1.50, and 2.0 carats) often come with a premium.

Compare diamonds around 0.93–0.99 carats with those at a full carat. When inventory creates a price step, a well-proportioned stone just below the threshold can look almost the same size for less.

Pro tip: A slightly smaller, well-cut diamond can look brighter and more attractive than a heavier diamond with weak light performance. Compare its millimeter measurements as well as its weight.

6. Compare Fancy Shapes With Round Diamonds

Consider Fancy-Cut Diamonds for Big Savings

Our 6th money-saving tip for buying a lab-grown diamond engagement ring is to opt for a fancy-cut diamond.

Fancy-shaped diamonds are any shapes other than the traditional round brilliant. Round diamonds are popular for their brightness and balanced outline, but they can carry a price premium. Fancy shapes may cost less and can also look larger face-up at the same weight.

The Most Popular Fancy-Cut Diamonds Include:

• Princess cut: Square and modern, with strong sparkle and often lower prices than comparable round diamonds.
• Oval Cut: Elegant and timeless, oval diamonds elongate the finger and appear larger than round stones of the same carat weight. They also hide inclusions and color well, making them a practical and beautiful choice.
• Cushion Cut: Known for its soft corners and pillow-like shape, this vintage-inspired cut has an old-world charm with a brilliant facet pattern that delivers impressive fire.
• Pear Cut: Pear-shaped diamonds are both striking and flattering, and they often look larger per carat than other shapes.
• Emerald Cut: With its sleek, rectangular facets, the emerald cut offers a sophisticated, hall-of-mirrors effect. It’s less fiery than brilliant cuts but showcases clarity and elegance like no other.
• Marquise Cut: Distinctive and dramatic, the marquise shape maximizes carat size, creating the illusion of a much larger diamond. It’s perfect for those who want a bold and eye-catching ring.

Whether you prefer the vintage charm of a cushion cut or the modern appeal of a princess cut, each fancy shape has its own allure and better yet, most styles come with a lower price tag than a round brilliant.

Explore our Diamond Shapes Guide.

[Blue Nile and its James Allen collection](/go/blue-nile-james-allen/?placement=save-money-on-a-lab-grown-diamond-engagement-ring)

7. Choose Smaller Stones for a Budget-Friendly Ring

Why Opt for Multiple Small Diamonds?

One of the best ways to save money on a lab-grown diamond engagement ring is to choose a design with multiple small diamonds, such as the popular halo ring. In this style, smaller brilliant-cut diamonds surround the center stone, adding extra sparkle and drawing attention to the ring’s main attraction.

Save Money with a Halo Setting

A halo setting usually costs more than a simple solitaire setting, but it can let you choose a smaller center diamond while retaining strong finger coverage. Compare the complete ring price: the smaller center may save more than the halo adds to the setting.

The Added Benefit: Bigger Look, Lower Price

Not only is a halo ring beautiful, but the smaller surrounding stones can make the center diamond appear larger—giving you the look of a more expensive ring for a fraction of the price of a single large stone.

A halo design from the James Allen collection, now sold through Blue Nile.

8. Choose 14K Gold Instead of 18K Gold to Save Money

Why 14K Gold is a Better Option for Engagement Rings

When selecting a metal for your engagement ring, 14K gold offers the best balance of affordability, durability, and beauty. While both 14K and 18K gold are popular choices for everyday wear, 14K gold is more affordable and more resistant to scratches.

The Difference Between 14K and 18K Gold

• 14K gold contains approximately 58% pure gold, making it durable and resistant to wear.
• 18K gold has about 75% pure gold, giving it a slightly warmer color, but it is softer and more prone to scratches.

Why Not 24K Gold?

Though 24K gold is the purest form of gold, it’s too soft for everyday jewelry, easily scratching and denting, which makes it unsuitable for engagement rings.

The Advantages of 14K Gold

• Cost-effective: 14K gold is the most affordable option among higher-carat golds.
• Durability: It’s more scratch-resistant than 18K gold, making it perfect for everyday wear.

9. Buy Your Engagement Ring Online for Huge Savings

Why Buying Your Engagement Ring Online is Cheaper

Online shopping makes it easier to compare a large number of diamonds and complete ring prices. Online-focused retailers can have lower overhead, but the useful test is the final price for a comparable diamond and setting—not whether the seller has a showroom.

Compare Prices and Find the Best Deal

In addition, one of the major advantages of buying online is the ability to easily compare prices from different jewelers. Online lab-grown diamond sellers provide massive selections, allowing you to browse through hundreds of diamonds and find the perfect stone for your engagement ring at the best price.

Customization Options from Top Online Jewelers

Shopping online also gives you time to compare reports, videos and prices without making the decision during a store appointment.

Many reputable online diamond retailers, including Ritani, Brilliant Earth, Grown Brilliance, With Clarity, and Blue Nile with its James Allen collection, let you choose a diamond and setting separately.

Some jewelers provide design previews or consultations to help you compare settings before ordering. Confirm which preview options are available for your chosen design.

When you’re ready to start looking for an engagement ring, make sure to begin by reading our guide on how to buy a lab-grown diamond engagement ring online and recommendations for the best places to buy lab-grown diamond engagement rings online.

10. Save Even More with Deals and Sales

Take Advantage of Lab-Grown Diamond Sales

One final tip for saving on your lab-grown diamond engagement ring is to keep an eye out for sales and discounts. Lab-grown diamonds are already up to 80% cheaper than their mined counterparts, but you can save even more during seasonal sales and special promotions.

Stay Updated on the Best Lab-Grown Diamond Deals

We continuously monitor lab-grown diamond offers. Compare the current promotion with the complete ring price and its terms; a large headline percentage does not always create the lowest final price.