How much does a 3.00 to 4.99ct D FL lab grown heart diamond cost?

As of September 2026, 3.00 to 4.99ct D FL lab grown heart diamonds typically cost $3,317 AUD to $25,468 AUD, with a median price of $7,765 AUD. There are currently 354 diamonds matching this specification available across retailers.

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

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3.00 to 4.99ct D FL Lab Grown Heart

Quick answer

As of September 2026, there are 354 lab grown heart diamonds with D colour and FL clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run $3,317 AUD to $25,468 AUD, with a median of $7,765 AUD. At least 24 retailers stock this exact specification. Half of all listings fall between $1,525 AUD and $5,037 AUD per carat. The same specification in natural form lists at a median of about $46,543 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

354

Lowest Price

$2,707 AUD

Highest Price

$191,669 AUD

Average Price

$11,866 AUD

Market Intelligence

Retailers Selling

Price Spread

143.3%

Price Range

Price per carat distribution across retailers

$1,747/ct

10th Percentile

$907

Median

$1,747

90th Percentile

$5,442

Score Distribution

354 diamonds scored across 4 quality tiers

Excellent

97 (27.4%)

Very Good

123 (34.7%)

Good

117 (33.1%)

Average

17 (4.8%)

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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