How much does a 5.00ct+ I SI2 lab grown radiant diamond cost?

As of July 2026, 5.00ct+ I SI2 lab grown radiant diamonds typically cost HK$524,320 HKD to HK$2,119,972 HKD, with a median price of HK$662,939 HKD. There are currently 3 diamonds matching this specification available across retailers.

Where can I find the best price on a I SI2 radiant diamond?

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

5.00ct+ I SI2 Lab Grown Radiant

Last updated: July 2026

Available

Lowest Price

HK$489,665 HKD

Highest Price

HK$2,567,000 HKD

Average Price

HK$1,212,278 HKD

Score Distribution

3 diamonds scored across 3 quality tiers

Very Good

1 (33.3%)

Good

1 (33.3%)

Average

1 (33.3%)

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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