Home / Blog

Lab-Grown Diamonds: Are They Really Worth It?

Sarah O. Editorial Team
Published 12 Dec 2025 | 4min read

Are lab-grown diamonds worth it? These synthetic stones are booming in popularity for engagement rings, becoming a sought-after alternative to the classic natural diamond. 

Today, we’re breaking down the key differences between lab diamonds and natural diamonds, including the cutting-edge technology behind the diamond.

From budget, to long-term value, to sustainability, we’re here to help you make the right decision for you.

Still learning the basics of diamonds? Discover the 4 Cs of diamonds in our diamond guide.

What is a Lab-Grown Diamond?

A lab-grown diamond is a diamond grown using machines. Natural diamonds on the other hand are mined from the earth’s crust before being cut and polished. Both types of diamonds are made of pure carbon, and are indistinguishable to the naked eye.

More couples are choosing lab diamonds over natural diamonds because of their origins, lower price point, and same familiar sparkle. If you want the classic diamond look on a budget, lab-grown diamonds are a great alternative. 

Loose diamonds in different cuts and carat sizes placed on a neutral fabric.

How are Lab-Grown Diamonds Formed

Lab-grown diamonds are produced in a scientific, laboratory setting, using one of two main processes: HPHT and CVD diamond methods. While earth-mined diamonds are formed over billions of years, the diamond synthesis process grows real diamonds from small diamond seed crystals in weeks.

Learn more about how lab-grown diamonds are formed.

Why Choose a Lab-Grown Diamond

They’re an Affordable Alternative

Lab-grown diamonds cost much less than natural diamonds. Typically, they sell for about 70% less than comparable natural diamonds. For example, a 2 carat natural diamond retails for about $20,000, but a similar sized lab-grown diamond costs closer to $5,000.  

Get Larger Diamond for Less

Lab-grown diamonds aren’t limited to smaller sizes. New technology has helped achieve lab diamonds at sizes that would be a rarity in natural grown stones. While natural gems cost exponentially more at higher carat weights, the cost-per-carat of lab-grown diamonds remains relatively steady, even for larger stones.

Sustainable Sourcing

Lab-grown diamonds are 100% mine free, making them a sustainable choice for couples looking for ethical diamonds. 

However, many natural diamonds are also sustainably sourced. All diamonds sourced by Sarah O. comply with the Kimberley Process, a commitment to remove conflict diamonds from the global supply chain.

Sarah O. founder examining a diamond through a loupe.

Is Lab-Grown or Natural Right for Me?

A lab-grown diamond might be right for you if you have your heart set on a big stone, because they’re so much more affordable than natural diamonds at large carat weights. Smaller synthetic gems are also less expensive than natural diamonds, making them a great choice for budget-minded couples.

A natural diamond might be the perfect choice if you’re looking for a timeless stone that retains value over time. For many, the natural diamond formation process is symbolic of eternal love and the beauty that emerges under pressure, making them an irreplaceable choice.

Same Ring, Different Stones

Many Sarah O. rings can be made with your choice of natural or lab-grown diamonds. Here’s some of our top settings.

Shop all made-to-order engagement rings.

The Lori Round Ring

The Lori round diamond ring with a diamond halo on a beige fabric background

The Lori Ring features a round diamond center stone in a prong setting, surrounded by an ornate halo of natural diamonds in pear, baguette, and round shapes. Choose between a 1 carat lab-grown diamond center stone or a 1 carat natural diamond center stone.

The Nova Oval Ring

The Nova oval diamond engagement ring in a brown velvet box.

This timeless ring features an oval center diamond set in four prongs, surrounded by a starburst diamond halo. Love the look of larger sizes? The Nova Ring available in lab-grown or natural diamonds in up to 3 carats.

The Harmony Ring

The Harmony toi et moi style engagement ring with an oval and marquise diamond set in prongs, displayed on a seashell.

This toi et moi ring features a pair of .50 carat diamonds, representing partnership and lifelong commitment. The Harmony Ring is available with lab-grown diamonds and natural diamonds.

The Vivien Marquise Ring

The Vivien marquise diamond engagement ring in a black box with a blurred background.

The Vivien Ring features a marquise center stone with clustered round side diamonds, for a look that’s both edgy and delicate. Available in lab-grown and natural diamonds, with stones up to 3 carats.

Choosing the Diamond for You

Lab-grown and natural diamonds are both enduring, symbolic choices to represent your eternal love. Ultimately, the only ones who can make the decision between lab-grown and natural diamonds are you and your partner. No matter which route you take, the Sarah O. team is here to help you find the right stone and bring your dream ring to life.

Shop Made-To-Order Rings

Looking for wedding, jewelry, and engagement tips? Read more on the Sarah O. blog.

About the Author
Sarah O. Editorial Team
We’re the storytellers behind Sarah O. Jewelry, sharing the latest trends, timeless designs, and insider tips. From gemstones to craftsmanship, we're here to help you discover jewelry that speaks to your story.
Share this article:
Join Our Community
Sign up to get exclusive access to promotions, events, and the latest one-of-a-kind jewelry.
Thank you for signing up!
Shop Gemstone Engagement Rings

Make the moment yours with non-traditional sapphires, emeralds, colored diamonds, and more.

Shop colored stones
Post Categories
Weddings
Proposals and Engagements