How much does a 2.00 to 2.99ct J SI2 lab grown princess diamond cost?

As of October 2026, 2.00 to 2.99ct J SI2 lab grown princess diamonds typically cost $870 USD to $3,464 USD, with a median price of $1,630 USD. There are currently 32 diamonds matching this specification available across retailers.

Where can I find the best price on a J SI2 princess diamond?

About 53% of these diamonds are available at multiple retailers, with an average price spread of 67%. A comparison tool like Carat Hunter lets you see all the prices side by side.

2.00 to 2.99ct J SI2 Lab Grown Princess

Quick answer

As of October 2026, there are 32 lab grown princess diamonds with J color and SI2 clarity in the 2.00 to 2.99ct range available across retailers worldwide. Prices typically run $870 USD to $3,464 USD, with a median of $1,630 USD. At least 15 retailers stock this exact specification, and 53% of the stones appear at more than one of them, with an average price spread of 67%. Half of all listings fall between $1,119 USD and $2,245 USD per carat. The same specification in natural form lists at a median of about $4,195 USD per carat. Over the last 30 days the median price moved +6.4% and the number of listings moved +10.2%.

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. Princess lab grown stones in the index: 461 USD per carat, -4.8% 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

$860 USD

Highest Price

$8,430 USD

Average Price

$2,062 USD

Market Intelligence

Retailers Selling

Cross Retailer %

52.9%

Price Spread

66.7%

30-Day Price Trend

+6.4%

30-Day Supply Change

+10.2%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$1,688/ct

10th Percentile

$965

Median

$1,688

90th Percentile

$2,795

Score Distribution

51 diamonds scored across 4 quality tiers

Excellent

27 (52.9%)

Very Good

5 (9.8%)

Good

1 (2.0%)

Average

18 (35.3%)

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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