How Much Does a 1-Carat Lab-Grown Diamond Cost?
Direct answer
There is no one price — a 1-carat lab-grown diamond spans a wide range, set by its other three Cs: cut, color and clarity, plus the certificate and the market the stone is priced from. A colorless, high-clarity 1-carat stone can cost several times one that is warm and eye-clean. The honest way to a number is to name the specs you want and let us price real, available stones for your project.
What moves the price of a one-carat stone
'One carat' fixes weight, not value. Two 1-carat stones can differ in price several-fold on color (D versus H), clarity (VS versus SI) and — most visibly — cut: a poorly proportioned 1-carat stone returns less light than a well-cut one of the same weight. Add the grading report and the market the stone is sourced from, and a single 'one carat costs X' number, from anyone, is marketing rather than information.
Lab versus mined at one carat is the comparison buyers actually make. At the same cut, color, clarity and carat, a lab-grown stone typically costs substantially less than the mined equivalent — there is no rarity premium — and one of the most common uses of that gap is buying a better grade or a bigger stone within the same budget. Ask for both routes priced side by side at your target grade; the difference is a real number, not a percentage off a poster.
How to get a real price for your piece. Give us the specs you care about — target color, clarity, cut expectation and what the stone is for, a ring center or a pendant — and we price actual stones available to your project as part of the quote, the same way metal and hours are priced. If you are comparing vendors, compare on identical grade and certificate: a cheaper quote usually means a different stone, not a better deal.
A current price range for a representative 1-carat lab-grown diamond at a stated grade — being filled from live supplier pricing.
This is part of our guide on Custom Jewelry Cost.
Related questions
More questions on this
Why is there no fixed price for a 1-carat lab-grown diamond?+
Because carat is only one grade. Cut, color, clarity and certificate move the price several-fold, so any single number would be misleading.
How does it compare with a mined 1-carat?+
At the same grade, lab-grown typically costs substantially less. Many buyers convert the difference into a better grade or a larger stone.
How do I get an actual quote?+
Tell us the specs you want and what the stone is for; we price real, available stones as part of your project quote — not a generic table.
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