How much does a 5.00ct+ D SI2 lab grown cushion diamond cost?

As of April 2026, 5.00ct+ D SI2 lab grown cushion diamonds are available from £113 GBP to £3,299 GBP, with an average price of £890 GBP. There are currently 117 diamonds matching this specification available across retailers.

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5.00ct+ D SI2 Lab Grown Cushion

As of April 2026, there are 117 lab grown cushion diamonds with D color and SI2 clarity in the 5.00ct+ range available across retailers worldwide. Prices range from £113 GBP to £3,299 GBP, with an average of £890 GBP.

Last updated: April 2026

Available

117

Lowest Price

£113 GBP

Highest Price

£3,299 GBP

Average Price

£890 GBP

Score Distribution

117 diamonds scored across 4 quality tiers

Excellent

17 (14.5%)

Very Good

43 (36.8%)

Good

19 (16.2%)

Average

38 (32.5%)

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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