How much does a 5.00ct+ F SI2 natural princess diamond cost?

As of September 2026, 5.00ct+ F SI2 natural princess diamonds typically cost $40,351 AUD to $144,352 AUD, with a median price of $94,689 AUD. There are currently 11 diamonds matching this specification available across retailers.

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

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5.00ct+ F SI2 Natural Princess

Quick answer

As of September 2026, there are 11 natural princess diamonds with F colour and SI2 clarity in the 5.00ct+ range available across retailers worldwide. Prices typically run $40,351 AUD to $144,352 AUD, with a median of $94,689 AUD. At least 22 retailers stock this exact specification. Half of all listings fall between $9,091 AUD and $20,517 AUD per carat. The same specification in lab grown form lists at a median of about $10,393 AUD 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

$24,614 AUD

Highest Price

$187,579 AUD

Average Price

$95,242 AUD

Market Intelligence

Retailers Selling

Price Spread

101.8%

Price Range

Price per carat distribution across retailers

$8,051/ct

10th Percentile

$6,303

Median

$8,051

90th Percentile

$16,534

Score Distribution

11 diamonds scored across 4 quality tiers

Excellent

2 (18.2%)

Very Good

3 (27.3%)

Good

2 (18.2%)

Average

4 (36.4%)

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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