Sixty-one percent: the aisle has already voted
The Knot's 2026 Real Weddings study finds 61% of couples who married in 2025 chose lab-grown center stones. Wholesale prices fell 14-15% in the first quarter; a premium one-carat lab stone now retails for $800-$1,200.
By The Demand Desk
What changed
The lab-grown debate has an official scoreboard now, and it is not close. According to The Knot's 2026 Real Weddings study, 61% of engagement rings bought by couples who married in 2025 carried lab-grown center stones.
What it means
- The number that matters is not 61; it is whichever number comes next. If lab-grown's share plateaus here, the trade settles into Smith's bifurcation and both counters make money.
- If it keeps climbing, the natural engagement stone becomes what the mechanical watch became: a luxury object justified by meaning rather than convention. The watch industry, it is worth noting, eventually found that trade rather profitable.
Key figures
| LAB-GROWN CENTER STONES | 61% |
|---|---|
| LG WHOLESALE, Q1 2026 | −14–15% |
| PREMIUM 1CT LAB-GROWN | $800–1,200 |
| NATURAL 1CT, OUR TAPE | $5,232 |
Source: The Knot 2026 Real Weddings study and Q1 pricing
The scoreboard reads 61
Whatever position a jeweler holds on the natural-versus-grown question, the American aisle has already voted, and it voted for the machine by a margin that would end most arguments.
The one-carat question · indicative dollars per stone
Source: The Knot 2026 Real Weddings study and Q1 pricing
Arithmetic, not compromise
The economics underneath the number are brutal in one direction and liberating in the other. Lab-grown wholesale prices fell another 14-15% year over year in the first quarter of 2026. A premium one-carat lab-grown stone now retails between $800 and $1,200, with entry-level goods available for a few hundred dollars.
For a generation, as the analyst Sherry Smith writes in National Jeweler, that is balancing a ring against homeownership, inflation and student debt, the choice stops feeling like a compromise and starts feeling like arithmetic.
Smith's larger argument is that the trade has framed the question wrong. The market is not either/or, she contends, but bifurcated: lab-grown owns value and accessibility, natural diamonds own luxury and rarity, and a retailer's job is building an environment where both can thrive rather than treating one as the other's obituary.
She also names the uncomfortable truth behind the natural side's slide: the industry stopped telling its story, and today's engagement customer did not grow up with the campaigns that made the diamond a requirement in the first place.
| Figure | |
|---|---|
| Natural 1Ct (Tape Proxy) | 5,232 |
| Premium Lab-Grown 1Ct, Top | 1,200 |
| Premium Lab-Grown 1Ct, Low | 800 |
The gap is the luxury argument; the gap is also the value argument Two products wearing one name. Carat Capital graphics desk.
What comes after the vote
The scoreboard does not settle where prices go next. This desk reported last week that lab-grown wholesale has been finding a floor, with some categories firming for the first time in two years, even as retail prices keep drifting down.
And the natural market's own data offered a countercurrent: one-carat natural prices have stirred, and De Beers' Gen Z research, whatever its methodology, claims record American interest in diamonds generally. A 61% share of a growing category is not the same as a 61% share of a fixed pie.
The story so far
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Method
The gap is the luxury argument; the gap is also the value argument