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

As of October 2026, 2.00 to 2.99ct J I1 lab grown round diamonds typically cost $2,360 AUD to $7,079 AUD, with a median price of $2,958 AUD. There are currently 7 diamonds matching this specification available across retailers.

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

About 67% of these diamonds are available at multiple retailers, with an average price spread of 85%. 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 October 2026, there are 7 lab grown round diamonds with J colour and I1 clarity in the 2.00 to 2.99ct range available across retailers worldwide. Prices typically run $2,360 AUD to $7,079 AUD, with a median of $2,958 AUD. At least 10 retailers stock this exact specification, and 67% of the stones appear at more than one of them, with an average price spread of 85%. Half of all listings fall between $1,194 AUD and $2,360 AUD per carat. The same specification in natural form lists at a median of about $7,206 AUD per carat. Over the last 30 days the median price moved -25.1% and the number of listings moved -30.8%.

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

Caratlytics Diamond Price Index, September 2026: natural diamonds at 2,335 USD per carat and lab-grown at 443 USD per carat, a natural to lab ratio of 5.3 to 1. Round lab grown stones in the index: 414 USD per carat, -5.0% month on month. See the full index release

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

Last updated: October 2026

Available

Lowest Price

$2,360 AUD

Highest Price

$11,097 AUD

Average Price

$3,950 AUD

Market Intelligence

Retailers Selling

Cross Retailer %

66.7%

Price Spread

85.1%

30-Day Price Trend

-25.1%

30-Day Supply Change

-30.8%

Volatility (30d)

0.06

Price Range

Price per carat distribution across retailers

$962/ct

10th Percentile

$749

Median

$962

90th Percentile

$2,325

Score Distribution

10 diamonds scored across 3 quality tiers

Very Good

7 (70.0%)

Good

1 (10.0%)

Average

2 (20.0%)

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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