How much does a 0.20 - 0.49ct G SI2 lab grown cushion diamond cost?

As of April 2026, 0.20 - 0.49ct G SI2 lab grown cushion diamonds are available from ￥48,146 JPY to ￥891,045 JPY, with an average price of ￥223,819 JPY. There are currently 81 diamonds matching this specification available across retailers.

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0.20 - 0.49ct G SI2 Lab Grown Cushion

As of April 2026, there are 81 lab grown cushion diamonds with G color and SI2 clarity in the 0.20 - 0.49ct range available across retailers worldwide. Prices range from ￥48,146 JPY to ￥891,045 JPY, with an average of ￥223,819 JPY.

Last updated: April 2026

Available

Lowest Price

￥48,146 JPY

Highest Price

￥891,045 JPY

Average Price

￥223,819 JPY

Score Distribution

81 diamonds scored across 4 quality tiers

Excellent

15 (18.5%)

Very Good

18 (22.2%)

Good

8 (9.9%)

Average

40 (49.4%)

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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