How much does a 0.50 to 0.74ct F SI1 natural princess diamond cost?

As of October 2026, 0.50 to 0.74ct F SI1 natural princess diamonds typically cost $787 AUD to $1,524 AUD, with a median price of $1,115 AUD. There are currently 903 diamonds matching this specification available across retailers.

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

About 41% of these diamonds are available at multiple retailers, with an average price spread of 26%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.50 to 0.74ct F SI1 Natural Princess

Quick answer

As of October 2026, there are 903 natural princess diamonds with F colour and SI1 clarity in the 0.50 to 0.74ct range available across retailers worldwide. Prices typically run $787 AUD to $1,524 AUD, with a median of $1,115 AUD. At least 59 retailers stock this exact specification, and 41% of the stones appear at more than one of them, with an average price spread of 26%. Half of all listings fall between $1,540 AUD and $1,987 AUD per carat. The same specification in lab grown form lists at a median of about $897 AUD per carat. Over the last 30 days the median price moved -2.3% and the number of listings moved +48.3%.

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

903

Lowest Price

$513 AUD

Highest Price

$2,885 AUD

Average Price

$1,172 AUD

Market Intelligence

Retailers Selling

Cross Retailer %

40.6%

Price Spread

26.2%

30-Day Price Trend

-2.3%

30-Day Supply Change

+48.3%

Volatility (30d)

0.02

Price Range

Price per carat distribution across retailers

$1,197/ct

10th Percentile

$990

Median

$1,197

90th Percentile

$1,756

Score Distribution

1.8K diamonds scored across 4 quality tiers

Excellent

152 (8.7%)

Very Good

602 (34.3%)

Good

182 (10.4%)

Average

819 (46.7%)

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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 9%

Lab-Grown F SI1Same specifications, lab-grown origin

Save 47%

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