CaratSixty-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.
§1The scoreboard reads 61.
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. 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.
§2Arithmetic, 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.
A 61% share of a growing category is not the same as a 61% share of a fixed pie.
§3What 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 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.
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