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

As of October 2026, 2.00 to 2.99ct G I1 natural round diamonds typically cost £5,190 GBP to £22,733 GBP, with a median price of £10,887 GBP. There are currently 179 diamonds matching this specification available across retailers.

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

About 25% of these diamonds are available at multiple retailers, with an average price spread of 65%. 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 October 2026, there are 179 natural round diamonds with G colour and I1 clarity in the 2.00 to 2.99ct range available across retailers worldwide. Prices typically run £5,190 GBP to £22,733 GBP, with a median of £10,887 GBP. At least 28 retailers stock this exact specification, and 25% of the stones appear at more than one of them, with an average price spread of 65%. Half of all listings fall between £2,910 GBP and £5,602 GBP per carat. The same specification in lab grown form lists at a median of about £843 GBP per carat. Over the last 30 days the median price moved -5.5% and the number of listings moved +3.8%.

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. Round natural stones in the index: 2,248 USD per carat, +7.6% 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

179

Lowest Price

£1,750 GBP

Highest Price

£28,665 GBP

Average Price

£12,251 GBP

Market Intelligence

Retailers Selling

Cross Retailer %

25.4%

Price Spread

65.5%

30-Day Price Trend

-5.5%

30-Day Supply Change

+3.8%

Volatility (30d)

0.02

Price Range

Price per carat distribution across retailers

$5,510/ct

10th Percentile

$2,367

Median

$5,510

90th Percentile

$9,416

Score Distribution

670 diamonds scored across 4 quality tiers

Excellent

56 (8.4%)

Very Good

135 (20.1%)

Good

79 (11.8%)

Average

400 (59.7%)

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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

Save 8%

Lab-Grown G I1Same specifications, lab-grown origin

Save 64%

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