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

As of September 2026, 3.00 to 4.99ct F SI2 natural princess diamonds typically cost £11,877 GBP to £33,635 GBP, with a median price of £21,549 GBP. There are currently 67 diamonds matching this specification available across retailers.

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

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3.00 to 4.99ct F SI2 Natural Princess

Quick answer

As of September 2026, there are 67 natural princess diamonds with F colour and SI2 clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run £11,877 GBP to £33,635 GBP, with a median of £21,549 GBP. At least 40 retailers stock this exact specification. Half of all listings fall between £5,881 GBP and £8,451 GBP per carat. The same specification in lab grown form lists at a median of about £223 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. Princess natural stones in the index: 2,073 USD per carat, -3.2% 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

Lowest Price

£9,972 GBP

Highest Price

£42,487 GBP

Average Price

£22,010 GBP

Market Intelligence

Retailers Selling

Price Spread

36.7%

Price Range

Price per carat distribution across retailers

$9,449/ct

10th Percentile

$6,084

Median

$9,449

90th Percentile

$13,249

Score Distribution

67 diamonds scored across 4 quality tiers

Excellent

13 (19.4%)

Very Good

23 (34.3%)

Good

15 (22.4%)

Average

16 (23.9%)

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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

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Lab-Grown F SI2Same specifications, lab-grown origin

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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