How much does a 3.00 - 4.99ct J SI2 lab grown marquise diamond cost?

As of April 2026, 3.00 - 4.99ct J SI2 lab grown marquise diamonds are available from £152 GBP to £80,298 GBP, with an average price of £4,356 GBP. There are currently 84 diamonds matching this specification available across retailers.

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3.00 - 4.99ct J SI2 Lab Grown Marquise

As of April 2026, there are 84 lab grown marquise diamonds with J color and SI2 clarity in the 3.00 - 4.99ct range available across retailers worldwide. Prices range from £152 GBP to £80,298 GBP, with an average of £4,356 GBP.

Last updated: April 2026

Available

Lowest Price

£152 GBP

Highest Price

£80,298 GBP

Average Price

£4,356 GBP

Score Distribution

84 diamonds scored across 4 quality tiers

Excellent

3 (3.6%)

Very Good

26 (31.0%)

Good

17 (20.2%)

Average

38 (45.2%)

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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