52% of US Engagement Rings Are Now Lab-Grown

It's official: in the United States, lab-grown diamonds are now the most popular choice for engagement rings. The Knot's 2025 Jewelry & Engagement Study found that 52% of engagement rings bought in 2024 featured a lab-grown centre stone. It's the first time lab-grown has passed the halfway mark.

Why couples are choosing lab-grown

Value: couples can choose a larger or higher-quality stone for their budget.
Values: many couples care about clear, documented origins.
Acceptance: with major retailers selling lab-grown diamonds, the choice feels completely mainstream.

What it means for buyers

If you're shopping for an engagement ring in 2025, you are in the majority if you choose lab-grown, and you'll find more choice than ever: shapes, sizes and settings at every price point.

What it means for jewellers

Lab-grown is no longer an "alternative" category; it's the main engagement category.
Customers expect certified lab-grown stones and clear explanations.
Offering bespoke designs and larger stones helps independents stand out.

Good news for India

India cuts and polishes most of the world's laboratory-grown diamonds, and the US is its largest market. Growth in American engagement ring demand supports jobs and investment across the industry, from Surat's workshops to trading centres.