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

As of September 2026, 2.00 to 2.99ct I I1 natural radiant diamonds typically cost £5,279 GBP to £16,506 GBP, with a median price of £8,458 GBP. There are currently 60 diamonds matching this specification available across retailers.

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

About 13% of these diamonds are available at multiple retailers, with an average price spread of 40%. A comparison tool like Carat Hunter lets you see all the prices side by side.

2.00 to 2.99ct I I1 Natural Radiant

Quick answer

As of September 2026, there are 60 natural radiant diamonds with I colour and I1 clarity in the 2.00 to 2.99ct range available across retailers worldwide. Prices typically run £5,279 GBP to £16,506 GBP, with a median of £8,458 GBP. At least 16 retailers stock this exact specification, and 13% of the stones appear at more than one of them, with an average price spread of 40%. Half of all listings fall between £2,981 GBP and £4,597 GBP per carat. The same specification in lab grown form lists at a median of about £3,652 GBP per carat. Over the last 30 days the median price moved -32.5% and the number of listings moved -67.1%.

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

£3,051 GBP

Highest Price

£26,608 GBP

Average Price

£10,189 GBP

Market Intelligence

Retailers Selling

Cross Retailer %

12.5%

Price Spread

39.8%

30-Day Price Trend

-32.5%

30-Day Supply Change

-67.1%

Volatility (30d)

0.02

Price Range

Price per carat distribution across retailers

$5,153/ct

10th Percentile

$2,919

Median

$5,153

90th Percentile

$7,909

Score Distribution

60 diamonds scored across 4 quality tiers

Excellent

3 (5.0%)

Very Good

16 (26.7%)

Good

9 (15.0%)

Average

32 (53.3%)

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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