How much does a 2.00 to 2.99ct G I1 natural round diamond cost?

As of September 2026, 2.00 to 2.99ct G I1 natural round diamonds typically cost £4,536 GBP to £13,640 GBP, with a median price of £7,699 GBP. There are currently 472 diamonds matching this specification available across retailers.

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

About 55% of these diamonds are available at multiple retailers, with an average price spread of 60%. A comparison tool like Carat Hunter lets you see all the prices side by side.

2.00 to 2.99ct G I1 Natural Round

Quick answer

As of September 2026, there are 472 natural round diamonds with G colour and I1 clarity in the 2.00 to 2.99ct range available across retailers worldwide. Prices typically run £4,536 GBP to £13,640 GBP, with a median of £7,699 GBP. At least 26 retailers stock this exact specification, and 55% of the stones appear at more than one of them, with an average price spread of 60%. Half of all listings fall between £3,031 GBP and £5,512 GBP per carat. The same specification in lab grown form lists at a median of about £3,900 GBP per carat. Over the last 30 days the median price moved -7.6% and the number of listings moved +9.5%.

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. Round natural stones in the index: 2,094 USD per carat, -3.8% 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

472

Lowest Price

£2,179 GBP

Highest Price

£36,797 GBP

Average Price

£8,529 GBP

Market Intelligence

Retailers Selling

Cross Retailer %

55.2%

Price Spread

60.1%

30-Day Price Trend

-7.6%

30-Day Supply Change

+9.5%

Volatility (30d)

0.03

Price Range

Price per carat distribution across retailers

$5,570/ct

10th Percentile

$2,602

Median

$5,570

90th Percentile

$9,455

Score Distribution

472 diamonds scored across 4 quality tiers

Excellent

46 (9.7%)

Very Good

221 (46.8%)

Good

109 (23.1%)

Average

96 (20.3%)

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Consider Instead

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

H I1H colour is visually identical to G to the naked eye

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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