How much does a 3.00 to 4.99ct H SI2 natural heart diamond cost?

As of September 2026, 3.00 to 4.99ct H SI2 natural heart diamonds typically cost £8,411 GBP to £35,260 GBP, with a median price of £14,161 GBP. There are currently 207 diamonds matching this specification available across retailers.

Where can I find the best price on a H SI2 heart diamond?

Compare prices across retailers on Carat Hunter to see all your options.

3.00 to 4.99ct H SI2 Natural Heart

Quick answer

As of September 2026, there are 207 natural heart diamonds with H colour and SI2 clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run £8,411 GBP to £35,260 GBP, with a median of £14,161 GBP. At least 12 retailers stock this exact specification. Half of all listings fall between £2,669 GBP and £3,178 GBP per carat. The same specification in lab grown form lists at a median of about £954 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. Heart natural stones in the index: 2,261 USD per carat, +1.7% 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

207

Lowest Price

£5,951 GBP

Highest Price

£135,449 GBP

Average Price

£18,720 GBP

Market Intelligence

Retailers Selling

Price Spread

17.2%

Price Range

Price per carat distribution across retailers

$3,761/ct

10th Percentile

$3,108

Median

$3,761

90th Percentile

$4,670

Score Distribution

207 diamonds scored across 4 quality tiers

Excellent

35 (16.9%)

Very Good

61 (29.5%)

Good

62 (30.0%)

Average

49 (23.7%)

Find Your Diamond

Search 207 H SI2 heart diamonds and compare prices.

Search Diamonds

Consider Instead

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

Lab-Grown H SI2Same specifications, lab-grown origin

Save 68%

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