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

As of October 2026, 2.00 to 2.99ct H I1 natural round diamonds typically cost £5,164 GBP to £19,835 GBP, with a median price of £9,778 GBP. There are currently 241 diamonds matching this specification available across retailers.

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

About 29% of these diamonds are available at multiple retailers, with an average price spread of 54%. A comparison tool like Carat Hunter lets you see all the prices side by side.

2.00 to 2.99ct H I1 Natural Round

Quick answer

As of October 2026, there are 241 natural round diamonds with H colour and I1 clarity in the 2.00 to 2.99ct range available across retailers worldwide. Prices typically run £5,164 GBP to £19,835 GBP, with a median of £9,778 GBP. At least 31 retailers stock this exact specification, and 29% of the stones appear at more than one of them, with an average price spread of 54%. Half of all listings fall between £2,788 GBP and £4,856 GBP per carat. The same specification in lab grown form lists at a median of about £1,977 GBP per carat. Over the last 30 days the median price moved -4.2% and the number of listings moved +13.1%.

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

241

Lowest Price

£1,845 GBP

Highest Price

£30,653 GBP

Average Price

£10,972 GBP

Market Intelligence

Retailers Selling

Cross Retailer %

29.4%

Price Spread

53.8%

30-Day Price Trend

-4.2%

30-Day Supply Change

+13.1%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$5,121/ct

10th Percentile

$2,424

Median

$5,121

90th Percentile

$7,797

Score Distribution

773 diamonds scored across 4 quality tiers

Excellent

68 (8.8%)

Very Good

169 (21.9%)

Good

105 (13.6%)

Average

431 (55.8%)

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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