How much does a 3.00 to 4.99ct J SI2 natural princess diamond cost?

As of October 2026, 3.00 to 4.99ct J SI2 natural princess diamonds typically cost $23,693 NZD to $68,918 NZD, with a median price of $45,314 NZD. There are currently 23 diamonds matching this specification available across retailers.

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

About 29% of these diamonds are available at multiple retailers, with an average price spread of 45%. A comparison tool like Carat Hunter lets you see all the prices side by side.

3.00 to 4.99ct J SI2 Natural Princess

Quick answer

As of October 2026, there are 23 natural princess diamonds with J colour and SI2 clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run $23,693 NZD to $68,918 NZD, with a median of $45,314 NZD. At least 44 retailers stock this exact specification, and 29% of the stones appear at more than one of them, with an average price spread of 45%. Half of all listings fall between $8,544 NZD and $13,444 NZD per carat. The same specification in lab grown form lists at a median of about $5,593 NZD per carat. Over the last 30 days the median price moved -3.4% and the number of listings moved -1.6%.

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

$21,309 NZD

Highest Price

$92,100 NZD

Average Price

$46,575 NZD

Market Intelligence

Retailers Selling

Cross Retailer %

28.8%

Price Spread

44.6%

30-Day Price Trend

-3.4%

30-Day Supply Change

-1.6%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$6,175/ct

10th Percentile

$4,358

Median

$6,175

90th Percentile

$8,821

Score Distribution

67 diamonds scored across 4 quality tiers

Excellent

7 (10.4%)

Very Good

12 (17.9%)

Good

12 (17.9%)

Average

36 (53.7%)

Find Your Diamond

Search 23 J SI2 princess diamonds and compare prices.

Search Diamonds

Consider Instead

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

Lab-Grown J SI2Same specifications, lab-grown origin

Save 49%

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