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

As of November 2026, 1.00 to 1.49ct J IF natural cushion diamonds typically cost $1,989 AUD to $5,438 AUD, with a median price of $2,782 AUD. There are currently 51 diamonds matching this specification available across retailers.

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

About 38% of these diamonds are available at multiple retailers, with an average price spread of 62%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.00 to 1.49ct J IF Natural Cushion

Quick answer

As of November 2026, there are 51 natural cushion diamonds with J colour and IF clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run $1,989 AUD to $5,438 AUD, with a median of $2,782 AUD. At least 48 retailers stock this exact specification, and 38% of the stones appear at more than one of them, with an average price spread of 62%. Half of all listings fall between $2,162 AUD and $3,809 AUD per carat. Over the last 30 days the median price moved -4.0% and the number of listings moved +10.8%.

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

$1,647 AUD

Highest Price

$11,647 AUD

Average Price

$3,248 AUD

Market Intelligence

Retailers Selling

Cross Retailer %

38.1%

Price Spread

62.2%

30-Day Price Trend

-4.0%

30-Day Supply Change

+10.8%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$1,861/ct

10th Percentile

$1,272

Median

$1,861

90th Percentile

$3,404

Score Distribution

119 diamonds scored across 4 quality tiers

Excellent

17 (14.3%)

Very Good

36 (30.3%)

Good

42 (35.3%)

Average

24 (20.2%)

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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