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

As of October 2026, 3.00 to 4.99ct I IF lab grown princess diamonds typically cost $12,708 AUD to $36,858 AUD, with a median price of $23,318 AUD. There are currently 1 diamonds matching this specification available across retailers.

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

About 20% of these diamonds are available at multiple retailers, with an average price spread of 19%. A comparison tool like Carat Hunter lets you see all the prices side by side.

3.00 to 4.99ct I IF Lab Grown Princess

Quick answer

As of October 2026, there are 1 lab grown princess diamonds with I colour and IF clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run $12,708 AUD to $36,858 AUD, with a median of $23,318 AUD. At least 14 retailers stock this exact specification, and 20% of the stones appear at more than one of them, with an average price spread of 19%. Half of all listings fall between $3,184 AUD and $3,858 AUD per carat. The same specification in natural form lists at a median of about $17,686 AUD per carat.

Three of the best scored stones at this specification right now:

3.81ct Princess I IF, IGI, grade A, from $10,735 AUD

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 lab grown stones in the index: 461 USD per carat, -4.8% 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

$10,735 AUD

Highest Price

$48,023 AUD

Average Price

$24,364 AUD

Market Intelligence

Retailers Selling

Cross Retailer %

20.0%

Price Spread

19.2%

Price Range

Price per carat distribution across retailers

$2,473/ct

10th Percentile

$2,134

Median

$2,473

90th Percentile

$3,092

Score Distribution

5 diamonds scored across 2 quality tiers

Excellent

1 (20.0%)

Good

4 (80.0%)

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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