How much does a 2.00 to 2.99ct H SI1 natural radiant diamond cost?

As of September 2026, 2.00 to 2.99ct H SI1 natural radiant diamonds typically cost £9,268 GBP to £21,637 GBP, with a median price of £12,969 GBP. There are currently 335 diamonds matching this specification available across retailers.

Where can I find the best price on a H SI1 radiant diamond?

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2.00 to 2.99ct H SI1 Natural Radiant

Quick answer

As of September 2026, there are 335 natural radiant diamonds with H colour and SI1 clarity in the 2.00 to 2.99ct range available across retailers worldwide. Prices typically run £9,268 GBP to £21,637 GBP, with a median of £12,969 GBP. At least 54 retailers stock this exact specification. Half of all listings fall between £4,864 GBP and £6,554 GBP per carat. The same specification in lab grown form lists at a median of about £1,285 GBP per carat.

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

335

Lowest Price

£6,081 GBP

Highest Price

£34,897 GBP

Average Price

£14,322 GBP

Market Intelligence

Retailers Selling

Price Spread

29.9%

Price Range

Price per carat distribution across retailers

$7,190/ct

10th Percentile

$5,336

Median

$7,190

90th Percentile

$9,410

Score Distribution

335 diamonds scored across 4 quality tiers

Excellent

17 (5.1%)

Very Good

82 (24.5%)

Good

124 (37.0%)

Average

112 (33.4%)

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Consider Instead

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

H SI2SI2 inclusions are not visible without magnification

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Lab-Grown H SI1Same specifications, lab-grown origin

Save 78%

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