How much does a 0.20 - 0.49ct I IF lab grown cushion diamond cost?

As of April 2026, 0.20 - 0.49ct I IF lab grown cushion diamonds are available from ￥65,970 JPY to ￥778,854 JPY, with an average price of ￥322,887 JPY. There are currently 14 diamonds matching this specification available across retailers.

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0.20 - 0.49ct I IF Lab Grown Cushion

As of April 2026, there are 14 lab grown cushion diamonds with I color and IF clarity in the 0.20 - 0.49ct range available across retailers worldwide. Prices range from ￥65,970 JPY to ￥778,854 JPY, with an average of ￥322,887 JPY.

Last updated: April 2026

Available

Lowest Price

￥65,970 JPY

Highest Price

￥778,854 JPY

Average Price

￥322,887 JPY

Score Distribution

14 diamonds scored across 4 quality tiers

Excellent

1 (7.1%)

Very Good

2 (14.3%)

Good

2 (14.3%)

Average

9 (64.3%)

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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