How much does a 3.00 to 4.99ct J IF natural cushion diamond cost?

As of November 2026, 3.00 to 4.99ct J IF natural cushion diamonds typically cost $51,907 NZD to $74,623 NZD, with a median price of $60,761 NZD. There are currently 4 diamonds matching this specification available across retailers.

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

About 18% of these diamonds are available at multiple retailers, with an average price spread of 20%. A comparison tool like Carat Hunter lets you see all the prices side by side.

3.00 to 4.99ct J IF Natural Cushion

Quick answer

As of November 2026, there are 4 natural cushion diamonds with J colour and IF clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run $51,907 NZD to $74,623 NZD, with a median of $60,761 NZD. At least 23 retailers stock this exact specification, and 18% of the stones appear at more than one of them, with an average price spread of 20%. Half of all listings fall between $16,372 NZD and $19,876 NZD per carat.

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. Cushion natural stones in the index: 2,948 USD per carat, +1.7% 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: November 2026

Available

Lowest Price

$51,622 NZD

Highest Price

$127,610 NZD

Average Price

$62,917 NZD

Market Intelligence

Retailers Selling

Cross Retailer %

17.6%

Price Spread

20.2%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$9,780/ct

10th Percentile

$8,335

Median

$9,780

90th Percentile

$12,167

Score Distribution

13 diamonds scored across 4 quality tiers

Excellent

4 (30.8%)

Very Good

1 (7.7%)

Good

4 (30.8%)

Average

4 (30.8%)

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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