How much does a 5.00ct+ J SI1 lab grown heart diamond cost?

As of April 2026, 5.00ct+ J SI1 lab grown heart diamonds are available from £186 GBP to £40,845 GBP, with an average price of £2,481 GBP. There are currently 177 diamonds matching this specification available across retailers.

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5.00ct+ J SI1 Lab Grown Heart

As of April 2026, there are 177 lab grown heart diamonds with J color and SI1 clarity in the 5.00ct+ range available across retailers worldwide. Prices range from £186 GBP to £40,845 GBP, with an average of £2,481 GBP.

Last updated: April 2026

Available

177

Lowest Price

£186 GBP

Highest Price

£40,845 GBP

Average Price

£2,481 GBP

Score Distribution

177 diamonds scored across 4 quality tiers

Excellent

11 (6.2%)

Very Good

28 (15.8%)

Good

63 (35.6%)

Average

75 (42.4%)

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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