How much does a 3.00 to 4.99ct F SI1 natural princess diamond cost?

As of October 2026, 3.00 to 4.99ct F SI1 natural princess diamonds typically cost $23,652 USD to $66,741 USD, with a median price of $37,152 USD. There are currently 22 diamonds matching this specification available across retailers.

Where can I find the best price on a F SI1 princess diamond?

About 30% of these diamonds are available at multiple retailers, with an average price spread of 36%. A comparison tool like Carat Hunter lets you see all the prices side by side.

3.00 to 4.99ct F SI1 Natural Princess

Quick answer

As of October 2026, there are 22 natural princess diamonds with F color and SI1 clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run $23,652 USD to $66,741 USD, with a median of $37,152 USD. At least 53 retailers stock this exact specification, and 30% of the stones appear at more than one of them, with an average price spread of 36%. Half of all listings fall between $9,457 USD and $13,443 USD per carat. The same specification in lab grown form lists at a median of about $350 USD per carat. Over the last 30 days the median price moved -0.0% and the number of listings moved +7.7%.

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

$21,345 USD

Highest Price

$109,438 USD

Average Price

$41,786 USD

Market Intelligence

Retailers Selling

Cross Retailer %

29.9%

Price Spread

35.9%

30-Day Price Trend

-0.0%

30-Day Supply Change

+7.7%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$11,111/ct

10th Percentile

$8,129

Median

$11,111

90th Percentile

$15,463

Score Distribution

53 diamonds scored across 4 quality tiers

Excellent

8 (15.1%)

Very Good

14 (26.4%)

Good

12 (22.6%)

Average

19 (35.8%)

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Consider Instead

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

F SI2SI2 inclusions are not visible without magnification

Save 16%

Lab-Grown F SI1Same specifications, lab-grown origin

Save 96%

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