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

As of September 2026, 1.00 to 1.49ct J IF natural marquise diamonds typically cost $3,245 AUD to $7,667 AUD, with a median price of $4,541 AUD. There are currently 112 diamonds matching this specification available across retailers.

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

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1.00 to 1.49ct J IF Natural Marquise

Quick answer

As of September 2026, there are 112 natural marquise diamonds with J colour and IF clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run $3,245 AUD to $7,667 AUD, with a median of $4,541 AUD. At least 40 retailers stock this exact specification. Half of all listings fall between $3,543 AUD and $5,261 AUD per carat. The same specification in lab grown form lists at a median of about $3,087 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. Marquise natural stones in the index: 2,114 USD per carat, -8.8% 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

112

Lowest Price

$2,052 AUD

Highest Price

$11,439 AUD

Average Price

$5,102 AUD

Market Intelligence

Retailers Selling

Price Spread

40.3%

Price Range

Price per carat distribution across retailers

$3,040/ct

10th Percentile

$2,082

Median

$3,040

90th Percentile

$4,451

Score Distribution

112 diamonds scored across 4 quality tiers

Excellent

15 (13.4%)

Very Good

33 (29.5%)

Good

30 (26.8%)

Average

34 (30.4%)

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Consider Instead

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

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