How much does a 2.00 to 2.99ct J I1 natural radiant diamond cost?

As of September 2026, 2.00 to 2.99ct J I1 natural radiant diamonds typically cost £5,449 GBP to £14,494 GBP, with a median price of £9,962 GBP. There are currently 43 diamonds matching this specification available across retailers.

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

About 8% of these diamonds are available at multiple retailers, with an average price spread of 42%. A comparison tool like Carat Hunter lets you see all the prices side by side.

2.00 to 2.99ct J I1 Natural Radiant

Quick answer

As of September 2026, there are 43 natural radiant diamonds with J colour and I1 clarity in the 2.00 to 2.99ct range available across retailers worldwide. Prices typically run £5,449 GBP to £14,494 GBP, with a median of £9,962 GBP. At least 13 retailers stock this exact specification, and 8% of the stones appear at more than one of them, with an average price spread of 42%. Half of all listings fall between £2,749 GBP and £3,999 GBP per carat. The same specification in lab grown form lists at a median of about £3,140 GBP per carat. Over the last 30 days the median price moved -44.6% and the number of listings moved -72.4%.

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. Radiant natural stones in the index: 2,765 USD per carat, +6.0% 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

Lowest Price

£2,928 GBP

Highest Price

£22,125 GBP

Average Price

£9,779 GBP

Market Intelligence

Retailers Selling

Cross Retailer %

7.9%

Price Spread

42.5%

30-Day Price Trend

-44.6%

30-Day Supply Change

-72.4%

Volatility (30d)

0.00

Price Range

Price per carat distribution across retailers

$3,976/ct

10th Percentile

$3,467

Median

$3,976

90th Percentile

$7,211

Score Distribution

43 diamonds scored across 4 quality tiers

Excellent

3 (7.0%)

Very Good

5 (11.6%)

Good

3 (7.0%)

Average

32 (74.4%)

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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