Price research
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
Core report
Compare like-for-like one-carat diamonds across leading online jewelers.
Read moreMarket comparison
See how the price difference changes the buying decision and likely resale expectations.
Read moreTotal budget
Separate the cost of the center stone from the setting and other ring choices.
Read moreLatest benchmark
These are lower-price benchmarks for round diamonds that meet the same broad quality rules. We compare each jeweler equally, and the figures cover loose diamonds before a setting.
Prices checked October 5, 2026
| Diamond size | Current benchmark | Coverage | Detailed guide |
|---|---|---|---|
| 1 carat | $379 | 3 jewelers · 1,036 diamonds checked | Compare 1-carat prices |
| 2 carat | $868 | 3 jewelers · 2,196 diamonds checked | Compare 2-carat prices |
| 3 carat | $1,317 | 3 jewelers · 2,666 diamonds checked | Compare 3-carat prices |
The benchmark gives each jeweler equal weight. This prevents one unusually large, inexpensive catalog from defining the whole market.
Daily market check
We track comparable round lab-grown diamonds from our partner inventories. Each daily figure gives every seller equal weight, so one jeweler's unusually large catalog cannot dominate the market number.
$379
Typical lower-priced examples have stayed broadly steady across this 13-day period.
$868
Typical lower-priced examples have stayed broadly steady across this 13-day period.
$1,317
Typical lower-priced examples have stayed broadly steady across this 13-day period.
We first find a typical lower price at each jeweler for comparable D–H, VS2–VVS1 diamonds with strong cut grades. We then use the middle seller result, so every jeweler counts once regardless of inventory size. Latest check: Oct 5.
Read the full lab-grown diamond market report · Compare prices by jeweler
Current inventory
Choose a shape, size, budget and quality preference to see close matches from Ritani, Brilliant Earth and With Clarity.
Diamonds available now
Checking current inventory…
Your diamond guide
What you may pay$200–$320
Your budget gives you room to choose a larger diamond, higher grades, or put more toward the setting.
A good starting point for platinum or white gold.
Check the video to make sure the diamond looks clean to the eye.
A well-cut diamond usually looks better than one with a needlessly high clarity grade.
Choose a diamond with an independent grading report.
Balanced quality: Keeps color and clarity comfortably high while leaving more of your budget for cut, size, or the setting.
Compare sellers
4 sellers in our comparison fit your budget.
| Jeweler | Estimated price | Your budget | Shop |
|---|---|---|---|
| RitaniBased on five closely matched, lower-priced diamonds from our price check. | $240 | Within budget | Search at Ritani |
| With ClarityBased on one closely matched diamond available during our price check. | $550 | Within budget | Search at With Clarity |
| Grown BrillianceBased on one closely matched diamond available during our price check. | $570 | Within budget | Search at Grown Brilliance |
| Blue NileBased on five closely matched, lower-priced diamonds from our price check. | $580 | Within budget | Search at Blue Nile |
How we estimated the price
We matched your choices to our recent price checks for round diamonds close to your chosen size. The available diamonds above come from current partner inventory.
Prices were checked September 2, 2026. Use them as a realistic shopping guide and confirm the price and diamond details on the seller's website.
Use the closest carat weight as a starting point, then compare cut, color, clarity, shape, and certification—not carat alone.
Price research and buying context for a 0.5 carat lab-grown diamond.
Price research and buying context for a 0.75 carat lab-grown diamond.
Price research and buying context for a 1 carat lab-grown diamond.
Price research and buying context for a 1.5 carats lab-grown diamond.
Price research and buying context for a 2 carats lab-grown diamond.
Price research and buying context for a 3 carats lab-grown diamond.
Price research and buying context for a 4 carats lab-grown diamond.
Price research and buying context for a 5 carats lab-grown diamond.
Price research and buying context for a 6 carats lab-grown diamond.
Put loose-diamond prices into the context of finished jewelry, financing, insurance, and the places where saving makes sense.