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

As of October 2026, 3.00 to 4.99ct I IF natural princess diamonds typically cost £15,442 GBP to £43,728 GBP, with a median price of £20,077 GBP. There are currently 8 diamonds matching this specification available across retailers.

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

About 31% of these diamonds are available at multiple retailers, with an average price spread of 35%. A comparison tool like Carat Hunter lets you see all the prices side by side.

3.00 to 4.99ct I IF Natural Princess

Quick answer

As of October 2026, there are 8 natural princess diamonds with I colour and IF clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run £15,442 GBP to £43,728 GBP, with a median of £20,077 GBP. At least 35 retailers stock this exact specification, and 31% of the stones appear at more than one of them, with an average price spread of 35%. Half of all listings fall between £5,739 GBP and £8,043 GBP per carat. The same specification in lab grown form lists at a median of about £1,857 GBP per carat. Over the last 30 days the median price moved -0.4% and the number of listings moved +10.1%.

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. Princess natural stones in the index: 2,158 USD per carat, +5.7% 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

£12,580 GBP

Highest Price

£55,607 GBP

Average Price

£26,092 GBP

Market Intelligence

Retailers Selling

Cross Retailer %

30.8%

Price Spread

34.7%

30-Day Price Trend

-0.4%

30-Day Supply Change

+10.1%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$8,841/ct

10th Percentile

$7,034

Median

$8,841

90th Percentile

$12,263

Score Distribution

19 diamonds scored across 4 quality tiers

Excellent

7 (36.8%)

Very Good

3 (15.8%)

Good

2 (10.5%)

Average

7 (36.8%)

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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