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

As of October 2026, 3.00 to 4.99ct D IF lab grown heart diamonds typically cost £1,334 GBP to £7,940 GBP, with a median price of £3,063 GBP. There are currently 181 diamonds matching this specification available across retailers.

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

About 42% of these diamonds are available at multiple retailers, with an average price spread of 101%. A comparison tool like Carat Hunter lets you see all the prices side by side.

3.00 to 4.99ct D IF Lab Grown Heart

Quick answer

As of October 2026, there are 181 lab grown heart diamonds with D colour and IF clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run £1,334 GBP to £7,940 GBP, with a median of £3,063 GBP. At least 50 retailers stock this exact specification, and 42% of the stones appear at more than one of them, with an average price spread of 101%. Half of all listings fall between £577 GBP and £1,424 GBP per carat. Over the last 30 days the median price moved -18.9% and the number of listings moved +24.4%.

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: October 2026

Available

181

Lowest Price

£668 GBP

Highest Price

£31,383 GBP

Average Price

£4,039 GBP

Market Intelligence

Retailers Selling

Cross Retailer %

42.4%

Price Spread

100.9%

30-Day Price Trend

-18.9%

30-Day Supply Change

+24.4%

Volatility (30d)

0.05

Price Range

Price per carat distribution across retailers

$1,125/ct

10th Percentile

$555

Median

$1,125

90th Percentile

$4,026

Score Distribution

555 diamonds scored across 5 quality tiers

Exceptional

5 (0.9%)

Excellent

222 (40.0%)

Very Good

172 (31.0%)

Good

114 (20.5%)

Average

42 (7.6%)

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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