How much does a 2.00 to 2.99ct G SI2 natural radiant diamond cost?

As of October 2026, 2.00 to 2.99ct G SI2 natural radiant diamonds typically cost £5,713 GBP to £22,741 GBP, with a median price of £10,518 GBP. There are currently 105 diamonds matching this specification available across retailers.

Where can I find the best price on a G SI2 radiant diamond?

About 29% of these diamonds are available at multiple retailers, with an average price spread of 48%. A comparison tool like Carat Hunter lets you see all the prices side by side.

2.00 to 2.99ct G SI2 Natural Radiant

Quick answer

As of October 2026, there are 105 natural radiant diamonds with G colour and SI2 clarity in the 2.00 to 2.99ct range available across retailers worldwide. Prices typically run £5,713 GBP to £22,741 GBP, with a median of £10,518 GBP. At least 54 retailers stock this exact specification, and 29% of the stones appear at more than one of them, with an average price spread of 48%. Half of all listings fall between £3,586 GBP and £5,775 GBP per carat. The same specification in lab grown form lists at a median of about £323 GBP per carat. Over the last 30 days the median price moved -0.5% and the number of listings moved +22.2%.

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. Radiant natural stones in the index: 3,091 USD per carat, +13.2% 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

105

Lowest Price

£2,978 GBP

Highest Price

£31,413 GBP

Average Price

£12,970 GBP

Market Intelligence

Retailers Selling

Cross Retailer %

29.5%

Price Spread

47.5%

30-Day Price Trend

-0.5%

30-Day Supply Change

+22.2%

Volatility (30d)

0.00

Price Range

Price per carat distribution across retailers

$6,170/ct

10th Percentile

$3,896

Median

$6,170

90th Percentile

$9,229

Score Distribution

382 diamonds scored across 4 quality tiers

Excellent

83 (21.7%)

Very Good

60 (15.7%)

Good

58 (15.2%)

Average

181 (47.4%)

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Consider Instead

Save money without compromising on what matters. These alternatives are visually similar but cost less.

H SI2H colour is visually identical to G to the naked eye

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Lab-Grown G SI2Same specifications, lab-grown origin

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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