How much does a 2.00 to 2.99ct J I1 lab grown round diamond cost?

As of September 2026, 2.00 to 2.99ct J I1 lab grown round diamonds typically cost $4,800 USD to $21,533 USD, with a median price of $7,575 USD. There are currently 353 diamonds matching this specification available across retailers.

Where can I find the best price on a J I1 round diamond?

About 5% of these diamonds are available at multiple retailers, with an average price spread of 1%. A comparison tool like Carat Hunter lets you see all the prices side by side.

2.00 to 2.99ct J I1 Lab Grown Round

Quick answer

As of September 2026, there are 353 lab grown round diamonds with J color and I1 clarity in the 2.00 to 2.99ct range available across retailers worldwide. Prices typically run $4,800 USD to $21,533 USD, with a median of $7,575 USD. At least 9 retailers stock this exact specification, and 5% of the stones appear at more than one of them, with an average price spread of 1%. Half of all listings fall between $2,337 USD and $2,365 USD per carat. The same specification in natural form lists at a median of about $5,028 USD per carat. Over the last 30 days the median price moved -0.6% and the number of listings moved -41.4%.

Three of the best scored stones at this specification right now:

Caratlytics Diamond Price Index, August 2026: natural diamonds at 2,184 USD per carat and lab-grown at 464 USD per carat, a natural to lab ratio of 4.7 to 1. Round lab grown stones in the index: 438 USD per carat, -14.1% month on month. See the full index release

Figures come from live listings across more than 100 retailers and refresh daily. The index is a monthly release.

Last updated: September 2026

Available

353

Lowest Price

$2,997 USD

Highest Price

$36,595 USD

Average Price

$10,963 USD

Market Intelligence

Retailers Selling

Cross Retailer %

5.4%

Price Spread

1.1%

30-Day Price Trend

-0.6%

30-Day Supply Change

-41.4%

Volatility (30d)

0.00

Price Range

Price per carat distribution across retailers

$2,350/ct

10th Percentile

$2,330

Median

$2,350

90th Percentile

$2,367

Score Distribution

353 diamonds scored across 3 quality tiers

Very Good

15 (4.2%)

Good

224 (63.5%)

Average

114 (32.3%)

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Related Specifications

D IF D VVS1 D VVS2 D VS1 D VS2 D SI1 E IF E VVS1 E VVS2 E VS1 E VS2 E SI1 F IF F VVS1 F VVS2 F VS1 F VS2 F SI1 G IF G VVS1 G VVS2 G VS1 G VS2 G SI1 H IF H VVS1 H VVS2 H VS1 H VS2 H SI1 I IF I VVS1 I VVS2 I VS1 I VS2 I SI1