How much does a 3.00 to 4.99ct I IF natural princess diamond cost?

As of September 2026, 3.00 to 4.99ct I IF natural princess diamonds typically cost £14,465 GBP to £40,447 GBP, with a median price of £20,656 GBP. There are currently 23 diamonds matching this specification available across retailers.

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

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3.00 to 4.99ct I IF Natural Princess

Quick answer

As of September 2026, there are 23 natural princess diamonds with I colour and IF clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run £14,465 GBP to £40,447 GBP, with a median of £20,656 GBP. At least 27 retailers stock this exact specification. Half of all listings fall between £5,534 GBP and £8,126 GBP per carat. The same specification in lab grown form lists at a median of about £2,041 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

£12,730 GBP

Highest Price

£54,820 GBP

Average Price

£24,418 GBP

Market Intelligence

Retailers Selling

Price Spread

38.1%

Price Range

Price per carat distribution across retailers

$9,191/ct

10th Percentile

$6,570

Median

$9,191

90th Percentile

$13,418

Score Distribution

23 diamonds scored across 4 quality tiers

Excellent

7 (30.4%)

Very Good

5 (21.7%)

Good

5 (21.7%)

Average

6 (26.1%)

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Consider Instead

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

J IFJ colour is visually identical to I to the naked eye

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Lab-Grown I IFSame 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