Lab Grown Diamond Price Per Carat: What to Expect in 2025 (With Rare Carat Insights) - Future Jewelry

Lab Grown Diamond Price Per Carat: What to Expect in 2025 (With Rare Carat Insights)

Quick answer: In the first quarter of 2025, an unbranded round 1-carat lab-grown diamond cost about $845 on average, versus about $3,895 for a similar natural diamond, according to analyst Paul Zimnisky. Lab-grown wholesale prices kept falling into 2026, so retail prices may keep drifting lower.

Lab-grown diamonds have transformed the jewelry industry by offering consumers a more affordable alternative to natural diamonds, created without mining. Understanding the pricing dynamics of these diamonds is crucial for both buyers and industry professionals. This article explores the current price per carat of lab-grown diamonds, insights from Rare Carat, and comparisons with natural diamond prices.

Current Price Per Carat of Lab-Grown Diamonds

Lab-grown diamond prices have fallen sharply: at wholesale they were down 90% to 95% compared with 2015, according to a 2025 JCK report citing analyst Paul Zimnisky. In the first quarter of 2025, an unbranded, round 1-carat lab-grown diamond cost, on average, $845, with actual prices depending on cut, color and clarity. In contrast, a similar natural diamond would cost about $3,895 (CNBC, citing Zimnisky).

Insights from Rare Carat

Rare Carat is an online marketplace that lists lab-grown diamonds from many sellers. Listing prices on marketplaces like this change daily, so treat any single listing as a snapshot rather than a benchmark.

Comparison with Natural Diamond Prices

The price disparity between lab-grown and natural diamonds is substantial. Natural diamond prices have also softened: Rapaport reported that its index for 1-carat natural diamonds fell 23% during 2024. Rapaport attributed the drop to synthetics competition and a drop in Chinese demand.

Factors Influencing Lab-Grown Diamond Prices

Several elements affect the pricing of lab-grown diamonds:

Conclusion

Lab-grown diamonds present a cost-effective, mining-free alternative to natural diamonds, with prices per carat significantly lower than their natural counterparts. Comparing IGI-graded stones, such as those in our lab-grown diamond engagement rings, is the simplest way to judge value. As the market evolves, staying informed about pricing trends and factors influencing value is essential for making educated purchasing decisions.

Sources

Shop Lab Grown Diamond Jewelry

Browse our most popular collections: 3 carat lab grown diamond rings, 2 carat lab grown diamond rings, 4 carat lab grown diamond rings, 5 carat lab grown diamond rings, lab grown diamond tennis bracelets, lab grown diamond stud earrings, lab grown diamond wedding bands, rose gold engagement rings, lab grown diamond engagement rings and lab grown diamond necklaces. Every piece is IGI certified and ships free to Canada and the United States.

Back to blog

Frequently Asked Questions

How much is a 1 carat lab grown diamond?

About $845 on average for an unbranded round 1 carat lab grown diamond in the first quarter of 2025, according to analyst Paul Zimnisky. Actual prices depend on cut, color and clarity, and lab grown prices have continued to drift lower since then.

Why do lab grown diamonds cost less than natural diamonds?

Mainly because improving technology has lowered production costs, according to Bain. Supply has grown quickly, and wholesale lab grown prices were down 90% to 95% compared with 2015, according to a 2025 JCK report. A similar natural 1 carat diamond cost about $3,895 in early 2025.

Are natural diamond prices going down too?

Yes. Rapaport reported that its index for 1 carat natural diamonds fell 23% during 2024, attributing the drop to competition from lab grown diamonds and weaker demand from China. Even so, natural diamonds still cost several times more than comparable lab grown stones.

What affects the price of a lab grown diamond?

The 4Cs: cut, color, clarity and carat weight still drive the price of any lab grown diamond. Production costs and market supply matter too. Comparing stones with IGI reports, which list 4Cs assessments, is the simplest way to judge whether a price is fair.

Should I wait for lab grown diamond prices to drop?

Not necessarily. Prices may keep drifting lower, since wholesale lab grown prices fell another 14% year over year in the first quarter of 2026, but no one can time the bottom. If you find a well graded stone at a fair price for your occasion, waiting may not save much.