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

As of October 2026, 3.00 to 4.99ct F SI2 natural heart diamonds typically cost £10,358 GBP to £61,273 GBP, with a median price of £21,175 GBP. There are currently 38 diamonds matching this specification available across retailers.

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

About 34% of these diamonds are available at multiple retailers, with an average price spread of 41%. A comparison tool like Carat Hunter lets you see all the prices side by side.

3.00 to 4.99ct F SI2 Natural Heart

Quick answer

As of October 2026, there are 38 natural heart diamonds with F colour and SI2 clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run £10,358 GBP to £61,273 GBP, with a median of £21,175 GBP. At least 30 retailers stock this exact specification, and 34% of the stones appear at more than one of them, with an average price spread of 41%. Half of all listings fall between £3,616 GBP and £5,446 GBP per carat. The same specification in lab grown form lists at a median of about £217 GBP per carat. Over the last 30 days the median price moved -4.8% and the number of listings moved +14.2%.

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. Heart natural stones in the index: 2,374 USD per carat, +9.8% 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

Lowest Price

£8,965 GBP

Highest Price

£84,727 GBP

Average Price

£29,227 GBP

Market Intelligence

Retailers Selling

Cross Retailer %

34.2%

Price Spread

40.8%

30-Day Price Trend

-4.8%

30-Day Supply Change

+14.2%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$5,979/ct

10th Percentile

$4,198

Median

$5,979

90th Percentile

$7,771

Score Distribution

87 diamonds scored across 4 quality tiers

Excellent

16 (18.4%)

Very Good

26 (29.9%)

Good

7 (8.0%)

Average

38 (43.7%)

Find Your Diamond

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Consider Instead

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

F I1I1 inclusions are not visible without magnification

Save 27%

Lab-Grown F SI2Same specifications, lab-grown origin

Save 95%

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