How much does a 5.00ct+ F FL lab grown heart diamond cost?

As of November 2026, 5.00ct+ F FL lab grown heart diamonds typically cost £5,876 GBP to £19,025 GBP, with a median price of £10,575 GBP. There are currently 3 diamonds matching this specification available across retailers.

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

About 67% of these diamonds are available at multiple retailers, with an average price spread of 57%. A comparison tool like Carat Hunter lets you see all the prices side by side.

5.00ct+ F FL Lab Grown Heart

Quick answer

As of November 2026, there are 3 lab grown heart diamonds with F colour and FL clarity in the 5.00ct+ range available across retailers worldwide. Prices typically run £5,876 GBP to £19,025 GBP, with a median of £10,575 GBP. At least 11 retailers stock this exact specification, and 67% of the stones appear at more than one of them, with an average price spread of 57%. Half of all listings fall between £1,229 GBP and £2,116 GBP per carat. Over the last 30 days the median price moved -8.3% and the number of listings moved +28.4%.

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: November 2026

Available

Lowest Price

£4,509 GBP

Highest Price

£41,929 GBP

Average Price

£11,651 GBP

Market Intelligence

Retailers Selling

Cross Retailer %

66.7%

Price Spread

56.8%

30-Day Price Trend

-8.3%

30-Day Supply Change

+28.4%

Volatility (30d)

0.10

Price Range

Price per carat distribution across retailers

$2,092/ct

10th Percentile

$1,240

Median

$2,092

90th Percentile

$3,158

Score Distribution

9 diamonds scored across 3 quality tiers

Excellent

3 (33.3%)

Very Good

5 (55.6%)

Good

1 (11.1%)

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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