How much does a 1.00 to 1.49ct D IF lab grown heart diamond cost?

As of September 2026, 1.00 to 1.49ct D IF lab grown heart diamonds typically cost $282 AUD to $2,034 AUD, with a median price of $722 AUD. There are currently 736 diamonds matching this specification available across retailers.

Where can I find the best price on a D IF heart diamond?

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1.00 to 1.49ct D IF Lab Grown Heart

Quick answer

As of September 2026, there are 736 lab grown heart diamonds with D colour and IF clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run $282 AUD to $2,034 AUD, with a median of $722 AUD. At least 36 retailers stock this exact specification. Half of all listings fall between $688 AUD and $1,478 AUD per carat. The same specification in natural form lists at a median of about $9,060 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. Heart lab grown stones in the index: 440 USD per carat, -9.4% 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

736

Lowest Price

$237 AUD

Highest Price

$7,494 AUD

Average Price

$970 AUD

Market Intelligence

Retailers Selling

Price Spread

91.5%

Price Range

Price per carat distribution across retailers

$615/ct

10th Percentile

$377

Median

$615

90th Percentile

$1,592

Score Distribution

734 diamonds scored across 5 quality tiers

Exceptional

4 (0.5%)

Excellent

263 (35.8%)

Very Good

273 (37.2%)

Good

86 (11.7%)

Average

108 (14.7%)

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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