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

As of October 2026, 3.00 to 4.99ct D FL lab grown heart diamonds typically cost €2,098 EUR to €14,645 EUR, with a median price of €5,431 EUR. There are currently 156 diamonds matching this specification available across retailers.

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

About 49% of these diamonds are available at multiple retailers, with an average price spread of 133%. A comparison tool like Carat Hunter lets you see all the prices side by side.

3.00 to 4.99ct D FL Lab Grown Heart

Quick answer

As of October 2026, there are 156 lab grown heart diamonds with D color and FL clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run €2,098 EUR to €14,645 EUR, with a median of €5,431 EUR. At least 34 retailers stock this exact specification, and 49% of the stones appear at more than one of them, with an average price spread of 133%. Half of all listings fall between €876 EUR and €2,490 EUR per carat. Over the last 30 days the median price moved -12.8% and the number of listings moved +14.9%.

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. Heart lab grown stones in the index: 421 USD per carat, -1.8% 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: October 2026

Available

156

Lowest Price

€1,780 EUR

Highest Price

€42,101 EUR

Average Price

€7,179 EUR

Market Intelligence

Retailers Selling

Cross Retailer %

48.9%

Price Spread

133.0%

30-Day Price Trend

-12.8%

30-Day Supply Change

+14.9%

Volatility (30d)

0.05

Price Range

Price per carat distribution across retailers

$1,355/ct

10th Percentile

$810

Median

$1,355

90th Percentile

$4,473

Score Distribution

434 diamonds scored across 5 quality tiers

Exceptional

1 (0.2%)

Excellent

163 (37.6%)

Very Good

27 (6.2%)

Good

197 (45.4%)

Average

46 (10.6%)

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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