How much does a 1.00 to 1.49ct J IF natural princess diamond cost?

As of September 2026, 1.00 to 1.49ct J IF natural princess diamonds typically cost $2,148 AUD to $4,475 AUD, with a median price of $3,054 AUD. There are currently 131 diamonds matching this specification available across retailers.

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1.00 to 1.49ct J IF Natural Princess

Quick answer

As of September 2026, there are 131 natural princess diamonds with J colour and IF clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run $2,148 AUD to $4,475 AUD, with a median of $3,054 AUD. At least 42 retailers stock this exact specification. Half of all listings fall between $2,537 AUD and $3,417 AUD per carat. The same specification in lab grown form lists at a median of about $2,040 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

131

Lowest Price

$1,631 AUD

Highest Price

$11,949 AUD

Average Price

$3,337 AUD

Market Intelligence

Retailers Selling

Price Spread

30.1%

Price Range

Price per carat distribution across retailers

$1,896/ct

10th Percentile

$1,408

Median

$1,896

90th Percentile

$2,615

Score Distribution

131 diamonds scored across 4 quality tiers

Excellent

27 (20.6%)

Very Good

45 (34.4%)

Good

22 (16.8%)

Average

37 (28.2%)

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Lab-Grown J 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