The Lab-Grown Diamond Market Is Heading to $59 Billion: What It Means for Ring Buyers

Lab grown diamond market growth and what it means for your ring budget

Lab grown diamond market growth is no longer a niche story for jewelry insiders. As Allied Market Research projects the global market for laboratory grown stones reaching roughly $55–$60 billion by 2031 (Allied Market Research, Lab-Grown Diamonds Market, 2022, Exhibit 3), couples shopping for engagement rings are feeling the impact directly at the counter. That rapid expansion in the diamonds market is changing how you think about carats, quality, and long term value for a wedding ring you will wear every day.

Analysts now estimate that lab grown diamonds represent roughly one fifth of the global diamond market by value, with lab grown center stones already passing natural diamonds in some bridal segments. This shift in global lab demand is driven by dramatic changes in diamond production methods, especially Chemical Vapor Deposition (CVD) and High Pressure High Temperature (HPHT) technologies that allow precise control over crystal growth and size. As production scales in every major producing country, from the United States to India and across Asia Pacific, the market share of synthetic diamonds in bridal jewelry keeps climbing and reshaping consumer expectations.

For a budget conscious couple, the headline is simple but powerful. A one carat grown diamond of high quality can now cost roughly 50 to 70 percent less than a comparable natural diamond, based on recent pricing comparisons from Bain & Company (Global Diamond Report 2022–23, Exhibit 14) and Rapaport (Rapaport Diamond Price Statistics Annual Report 2023, p. 27) that track wholesale and retail trends. Those studies show that the discount often widens as you move up in carats, which is why lab grown options are especially attractive if you want a larger size solitaire or a three stone ring without pushing your total spend beyond a realistic market size for your household budget.

Behind those price tags sits a very different supply story. Natural diamonds depend on finite geological deposits and complex mining operations, while laboratory grown stones depend on electricity, reactors, and skilled technicians who can tune CVD and HPHT growth conditions. As more reactors come online and diamond production capacity expands in Asia Pacific hubs and in the United States, the global market for grown diamonds becomes less constrained by geology and more tied to industrial scaling and energy costs. That is the core driver of lab grown diamond market growth and the main reason prices have fallen so quickly in recent years.

History shows that when a jewelry segment shifts from scarcity to scalable production, pricing rarely moves back in the other direction. Couples choosing a lab grown diamond today should plan for continued growth in supply and the likelihood that similar stones will be cheaper in the future, even if the overall diamonds market grows in absolute billion dollar terms. In practical terms, that means you should buy a grown diamond for the emotional and aesthetic value it brings to your wedding ring, not as a financial asset you expect to track the broader diamond market over time.

For context, think about how wedding ring styles evolved from the slim platinum bands of the 1930s to the bold mid century diamond jewelry that followed. Historical shifts in taste and technology, like the rise of mass produced settings, always show up first in bridal pieces before spreading to the rest of the jewelry market. If you want to understand how those earlier changes played out, a detailed look at wedding rings from the 1930s offers a useful parallel to today’s laboratory grown transition.

Price drops, resale reality, and how natural diamonds are being repositioned

Retailers now treat lab grown and natural diamonds as two distinct product worlds, even when they share the same display case. On the main floor you will often see lab grown engagement rings positioned as everyday luxury, while natural diamonds are framed as rare, almost archival pieces in a separate segment of the store. That merchandising choice reflects both lab grown diamond market growth and a deliberate attempt to preserve the perceived rarity premium of natural diamonds in the broader gemstones category.

From a pricing perspective, the near doubling of laboratory grown supply projected for the global market means one thing for couples. You should expect continued downward pressure on prices for grown diamonds, especially in popular sizes between 0.75 and 2.00 carats where production is most efficient and competition is fiercest. As more laboratory grown producers in Asia Pacific and India refine their CVD and HPHT processes, the cost per carat for high quality stones will likely keep falling faster than the overall diamonds market grows, even as total sales volumes increase.

Resale value is where the contrast between natural diamonds and lab grown stones becomes stark. On the secondary market today, many buyers treat a pre owned grown diamond almost like a piece of consumer electronics, assuming rapid depreciation as newer, cheaper, and sometimes higher quality stones enter the global lab supply. Natural diamonds, by comparison, tend to hold a higher percentage of their original price, although even they rarely function as true investments once you factor in retail markups and changing tastes in diamond jewelry.

For your wedding ring budget, that resale reality should shape how you allocate money between the center diamond and the rest of the piece. If you choose a laboratory grown center stone, it often makes sense to invest more in a timeless setting, such as a well made platinum solitaire or a carefully crafted pavé band, because the metalwork and design will retain emotional value even if the diamond market moves. With natural diamonds, you are paying both for intrinsic scarcity and for a long history of marketing that has linked these stones to milestones, status, and tradition in almost every country and culture.

Market analysts now describe natural diamonds as a shrinking but still powerful segment of the global market, with a focus on high net worth buyers and collectors who prioritize rarity over carat size. Lab grown stones, by contrast, dominate the volume driven share of the diamonds market, especially in bridal categories where couples want high quality sparkle at a more accessible price. That split is why you increasingly see share metrics in industry reports, tracking how much of each retailer’s diamond production and sales come from laboratory grown versus mined stones.

For couples who like to read the fine print, it helps to remember that every grading report, whether for a natural diamond or a grown diamond, is a snapshot of measurable quality, not a guarantee of future market share or resale value. The certificate tells you about cut, color, clarity, and carats, but it cannot predict how lab grown diamond market growth or shifts in the global market will affect prices ten years from now. When you choose between natural diamonds and laboratory grown options, you are really choosing between two different stories about permanence, not two different paths to financial gain.

Illustrative price trend snapshot

These indexed figures, adapted from Bain & Company (Global Diamond Report 2022–23, Exhibit 16) and Rapaport (Rapaport Diamond Price Statistics Annual Report 2023, p. 31), normalize 2018 average retail prices for a 1 ct G VS2 excellent cut round as 100 and then show relative movements for comparable natural and lab grown stones; they illustrate the broad direction of pricing rather than exact quotes for any single stone.

“We see lab grown diamonds evolving into a mainstream choice for bridal jewelry, while natural diamonds increasingly occupy a curated, collectible niche,” notes Claudia D’Arpizio, a Bain & Company partner and luxury analyst, in a recent global diamonds market review.

How to time your purchase and design a future proof wedding ring

Couples often ask whether they should buy a lab grown diamond ring now or wait for prices to fall further. The honest answer is that timing the diamonds market is as difficult as timing any other global market, especially when technology, energy costs, and regional production in Asia Pacific and the United States can all shift quickly. What you can do is use current lab grown diamond market growth trends to make smarter, more grounded decisions about size, quality, and setting.

If your budget is tight but you want a visually impactful ring, it usually makes sense to prioritize cut quality over raw carats, whether you choose natural diamonds or laboratory grown stones. A well cut 0.90 carat grown diamond in a clean solitaire or halo can look more impressive on the hand than a poorly cut 1.20 carat stone, even if the latter sounds better on paper and in market size statistics. Because laboratory grown production allows for consistent high quality output, you can often find excellent cut grades at prices that leave room for a custom band or matching stackable rings.

One practical strategy is to treat the center stone as the most flexible part of your wedding ring over time. You might start with a modest size laboratory grown diamond today, then upgrade to a larger or higher quality stone later as the global lab supply expands and prices adjust, while keeping the same sentimental setting. This approach works especially well if you pair your engagement ring with meaningful bands, such as the personalized pieces highlighted in guides to stackable bands and birthstone rings, because the overall jewelry story on your hand matters more than any single stone.

Historical trends in wedding rings show that what feels cutting edge in one decade often becomes classic in the next. Thin yellow gold bands that once looked old fashioned now feel modern again, while certain ornate diamond jewelry styles from past eras read as vintage rather than dated. If you enjoy that sense of continuity, resources that share surprising facts about wedding rings can help you see your own choices as part of a longer story that stretches beyond current lab grown diamond market growth curves.

When you sit down with a jeweler, ask direct questions about how much of their diamond production and inventory is laboratory grown versus natural, and how they expect that balance to change. A transparent professional will be able to explain how CVD and HPHT processes affect both the quality and the long term pricing of their grown diamond offerings, and how they position synthetic diamonds alongside mined stones in their overall diamonds market strategy. Those answers will tell you more about the real state of the diamond market than any slogan or limited time promotion.

In the end, the right wedding ring for a budget conscious first buyer is the one where every euro feels intentional. Use lab grown diamond market growth to your advantage by letting it buy you better cut quality, a more comfortable setting, or a design that feels like you, rather than chasing speculative future value in any segment of the global market. The ring that will matter most is not the one with the most impressive market share, but the one that still catches your eye in soft kitchen light long after the purchase date has faded from memory.