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

As of September 2026, 1.00 to 1.49ct J IF natural cushion diamonds typically cost $2,130 AUD to $5,957 AUD, with a median price of $2,916 AUD. There are currently 118 diamonds matching this specification available across retailers.

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

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1.00 to 1.49ct J IF Natural Cushion

Quick answer

As of September 2026, there are 118 natural cushion diamonds with J colour and IF clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run $2,130 AUD to $5,957 AUD, with a median of $2,916 AUD. At least 36 retailers stock this exact specification. Half of all listings fall between $2,362 AUD and $4,045 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. Cushion natural stones in the index: 2,792 USD per carat, +1.1% 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

118

Lowest Price

$1,776 AUD

Highest Price

$10,277 AUD

Average Price

$3,604 AUD

Market Intelligence

Retailers Selling

Price Spread

58.4%

Price Range

Price per carat distribution across retailers

$1,875/ct

10th Percentile

$1,298

Median

$1,875

90th Percentile

$3,356

Score Distribution

118 diamonds scored across 4 quality tiers

Excellent

21 (17.8%)

Very Good

29 (24.6%)

Good

34 (28.8%)

Average

34 (28.8%)

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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