How much does a 0.20 - 0.49ct I SI1 lab grown princess diamond cost?

As of April 2026, 0.20 - 0.49ct I SI1 lab grown princess diamonds are available from ￥38,806 JPY to ￥26,830,597 JPY, with an average price of ￥628,425 JPY. There are currently 349 diamonds matching this specification available across retailers.

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0.20 - 0.49ct I SI1 Lab Grown Princess

As of April 2026, there are 349 lab grown princess diamonds with I color and SI1 clarity in the 0.20 - 0.49ct range available across retailers worldwide. Prices range from ￥38,806 JPY to ￥26,830,597 JPY, with an average of ￥628,425 JPY.

Last updated: April 2026

Available

349

Lowest Price

￥38,806 JPY

Highest Price

￥26,830,597 JPY

Average Price

￥628,425 JPY

Score Distribution

348 diamonds scored across 4 quality tiers

Excellent

12 (3.4%)

Very Good

63 (18.1%)

Good

187 (53.7%)

Average

86 (24.7%)

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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