How much does a 5.00ct+ I VS1 lab grown heart diamond cost?

As of October 2026, 5.00ct+ I VS1 lab grown heart diamonds typically cost £662 GBP to £17,942 GBP, with a median price of £3,847 GBP. There are currently 7 diamonds matching this specification available across retailers.

Where can I find the best price on a I VS1 heart diamond?

Compare prices across retailers on Carat Hunter to see all your options.

5.00ct+ I VS1 Lab Grown Heart

Quick answer

As of October 2026, there are 7 lab grown heart diamonds with I colour and VS1 clarity in the 5.00ct+ range available across retailers worldwide. Prices typically run £662 GBP to £17,942 GBP, with a median of £3,847 GBP.

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

Lowest Price

£458 GBP

Highest Price

£29,522 GBP

Average Price

£7,292 GBP

Score Distribution

13 diamonds scored across 4 quality tiers

Excellent

4 (30.8%)

Very Good

3 (23.1%)

Good

2 (15.4%)

Average

4 (30.8%)

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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