Measuring the Lab-Grown Diamond Market: Size, Growth, and Future Opportunities
National Jeweler talks to two analysts about market share and where the stones go from here.

The category slowly has been building in market share as production ramps up and more consumers opt for a man-made stone, with the U.S. market being the largest by far for the products.
To put the current market size and near-term prospects into perspective, National Jeweler spoke with independent industry analysts Edahn Golan and Paul Zimnisky.
Both use their own research and analysis to create the data shared below, which is based on their estimates and forecasts.
An Upward Curve
Looking at the market over the past five years shows an interesting growth curve.
Prior to 2018, lab-grown diamond jewelry sales totaled less than $1 billion, representing less than 1 percent of the total global diamond jewelry market, Zimnisky estimates. (Though these are global figures, Zimnisky noted that the U.S. makes up the majority of the market—more than 90 percent.)
Golan’s estimates for 2018 have lab-grown diamonds accounting for less than 1.5 percent of all diamond sales by specialty retailers in the United States.
By the following year, that had crept up to more than 2 percent, he said, and it’s continued to grow, especially as more producers, like De Beers with its Lightbox brand, have come online.
By 2020, the stones’ market share had increased to about 3.5 percent, and last year it neared 5 percent, indicating continued growth in consumer awareness and acceptance of the product, Golan said.
Overall, Golan said lab-grown diamonds were a $3.9 billion business in the U.S. in 2021.
Zimnisky’s estimates for the market are more bullish.
His research indicates that in 2021, global lab-grown diamond jewelry sales totaled approximately $5.9 billion, representing 7 to 8 percent of the total diamond jewelry market.
According to these two experts, there’s no doubt the lab-grown diamond market will continue to grow, especially as producers ramp up supply and major retailers, like Signet and Pandora, continue to increase their lab-grown diamond inventory.
“All things being equal, a 7 percent share in 2022 is not an unlikely scenario,” Golan said.
Zimnisky, meanwhile, said lab-grown jewelry sales could near $8 billion-plus in 2022, approaching 10 percent of the total diamond jewelry market, and near the $10 billion mark by 2023.
Bridal vs. Fashion
One of the biggest conversations around lab-grown diamonds is, what will consumers buy them for, exactly? Bridal or fashion jewelry?
Currently, about 60 percent of lab-grown diamond sales by value at specialty jewelers are bridal, according to Golan, who noted that’s largely because engagement rings generally cost more than fashion pieces.
But when one looks at the market share by number of units sold (volume), bridal and fashion are evenly split at 50-50, he said.
Golan also noted the ratio of lab-grown diamond sales at larger retail spaces, like Macy’s or Amazon, is very different because consumers tend to shop there for fashion jewelry more than bridal, further indicating that, in the U.S., lab-grown diamond bridal jewelry doesn’t have such a large share.
“I think self-purchase is probably getting to be the biggest segment of the market and a lot of that’s fashion jewelry.”—Paul Zimnisky
Zimnisky said while the lab-grown diamond market has seen the lion’s share of its opportunity in bridal so far, it will start to occupy more in fashion jewelry in the coming years.
“I think self-purchase is probably getting to be the biggest segment of the market and a lot of that’s fashion jewelry,” he said, adding that big companies like Pandora and Lightbox are positioning them as fashion products as well.
Pricing could also influence this potential trend, he said.
As lab-grown diamond prices keep dropping—as they have been for a few years now—it’s likely more lab-grown diamonds will be marketed as fashion jewelry.
Pricing and Its Effects
Lab-grown diamond prices fell last year, while natural polished diamond prices rose by about 30 percent, Zimnisky estimated, widening the gap between the two categories.
Better methods among growers and competition among wholesalers will lead to a continued decrease in prices, both analysts agreed, and it remains to be seen when lab-grown prices will bottom out.
Right now, generic lab-grown diamonds are priced as much as 75-85 percent lower than natural diamonds of the same quality, Zimnisky said.
He said lab-grown diamonds likely will end up being priced similar to Lightbox, which has a linear pricing system based on size ($800 for a 1-carat diamond, $400 for a half-carat diamond, etc.).

The widening price gap also plays a role in one big question on everyone’s mind: Are lab-grown diamonds taking away from sales of natural diamonds?
Just a few years ago, when lab-grown diamonds were priced 10 to 15 percent less than comparable natural diamonds, “almost all of those lab-grown diamond sales were probably taking sales away from natural,” he said.
But now that the price gap has widened, there are probably many consumers buying a lab-grown diamond that wouldn’t have considered a natural diamond of the same quality because the price is so much higher. In other words, lab-grown diamonds are potentially finding new consumers.
Ultimately, though, market share and growth will depend on one important aspect, both analysts agreed—marketing.
“It’s still a luxury product. It’s an emotional purchase, and people buy it because they like the way it makes them feel. And I think that’s where the marketing kind of really comes into play,” Zimnisky said.
“I think the natural diamond industry can really protect its market if it’s successful with proper marketing. And if they aren’t, then I think that there’s serious risk there.”
The Latest

Sponsored by the Las Vegas Antique Jewelry and Watch Show

A private American collector purchased the 10-carat fancy vivid blue diamond.

The designer has taken the appeal of freshly picked fruit and channeled it into a capsule collection of earrings, necklaces, and pendants.

Gain access to the most exclusive and coveted antique pieces from trusted dealers during Las Vegas Jewelry Week.

The country’s gem and jewelry exports fell 5 percent year-over-year last month, while imports declined 18 percent.


Around 54 million Americans and counting live with a disability. Here’s how to make your jewelry store and website more accessible.

The event is also accepting poster submissions now through June 16.

Supplier Spotlight Sponsored by GIA

Before Pope Leo XIV was elected, a centuries-old procedure regarding the late pontiff’s ring was followed.

The one-of-a-kind platinum Rolex Cosmograph Daytona was estimated to fetch up to $1.7 million.

The police are trying to identify the man suspected of robbing two Tiffany & Co. locations in the area.

The well-known Maine jeweler takes over for Brian Fleming and will serve a one-year term.

The donation was the result of the brand’s annual Earth Day Ingot event.

Located in NorthPark Center, the revamped store is nearly 2,000 square feet larger and includes the first Tudor boutique in Dallas.

The nonprofit has made updates to the content in its beginner and advanced jewelry sales courses.

BIJC President Malyia McNaughton will shift roles to lead the new foundation, and Elyssa Jenkins-Pérez will succeed her as president.

As a nod to the theme of JCK Las Vegas 2025, “Decades,” National Jeweler took a look back at the top 10 jewelry trends of the past 10 years.

Following weekend negotiations, the tax on Chinese goods imported into the United States will drop by 115 percent for the next 90 days.

“Artists’ Jewelry: From Cubism to Pop, the Diane Venet Collection” is on view at the Norton Museum of Art through October.

The deadline to submit is June 16.

Moti Ferder stepped down Wednesday and will not receive any severance pay, parent company Compass Diversified said.

Lichtenberg partnered with luxury platform Mytheresa on two designs honoring the connection between mothers and daughters.

The miner announced plans to recommence open-pit mining at Kagem.

Michel Desalles allegedly murdered Omid Gholian inside World of Gold N Diamond using zip ties and then fled the country.

Associate Editor Lauren McLemore shares her favorite looks from a night of style inspired by Black dandyism.

Sponsored by Instappraise

CEO Beth Gerstein discussed the company’s bridal bestsellers, the potential impact of tariffs, and the rising price of gold.