Core report
One-carat price comparison
Compare like-for-like one-carat diamonds across leading online jewelers.
Read morePrice research
Lab-grown diamond prices
Lab-grown diamond prices move quickly and headline discounts can be misleading. Our price guides compare similar stones and explain the quality, shape, certification, and seller differences behind the number.
Start here
Our most useful starting points
Market comparison
Lab-grown vs. natural diamond prices
See how the price difference changes the buying decision and likely resale expectations.
Read moreTotal budget
Engagement ring prices
Separate the cost of the center stone from the setting and other ring choices.
Read morePrices by carat weight
Use the closest carat weight as a starting point, then compare cut, color, clarity, shape, and certification—not carat alone.
0.5 carat lab-grown diamond prices
Price research and buying context for a 0.5 carat lab-grown diamond.
0.75 carat lab-grown diamond prices
Price research and buying context for a 0.75 carat lab-grown diamond.
1 carat lab-grown diamond prices
Price research and buying context for a 1 carat lab-grown diamond.
1.5 carats lab-grown diamond prices
Price research and buying context for a 1.5 carats lab-grown diamond.
2 carats lab-grown diamond prices
Price research and buying context for a 2 carats lab-grown diamond.
3 carats lab-grown diamond prices
Price research and buying context for a 3 carats lab-grown diamond.
4 carats lab-grown diamond prices
Price research and buying context for a 4 carats lab-grown diamond.
5 carats lab-grown diamond prices
Price research and buying context for a 5 carats lab-grown diamond.
6 carats lab-grown diamond prices
Price research and buying context for a 6 carats lab-grown diamond.
More price and budget guides
Put loose-diamond prices into the context of finished jewelry, financing, insurance, and the places where saving makes sense.