How much does a 0.20 - 0.49ct J SI2 lab grown princess diamond cost?

As of April 2026, 0.20 - 0.49ct J SI2 lab grown princess diamonds are available from ￥36,567 JPY to ￥13,601,194 JPY, with an average price of ￥536,847 JPY. There are currently 199 diamonds matching this specification available across retailers.

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

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

0.20 - 0.49ct J SI2 Lab Grown Princess

As of April 2026, there are 199 lab grown princess diamonds with J color and SI2 clarity in the 0.20 - 0.49ct range available across retailers worldwide. Prices range from ￥36,567 JPY to ￥13,601,194 JPY, with an average of ￥536,847 JPY.

Last updated: April 2026

Available

199

Lowest Price

￥36,567 JPY

Highest Price

￥13,601,194 JPY

Average Price

￥536,847 JPY

Score Distribution

199 diamonds scored across 4 quality tiers

Excellent

1 (0.5%)

Very Good

50 (25.1%)

Good

48 (24.1%)

Average

100 (50.3%)

Find Your Diamond

Search 199 J SI2 princess diamonds and compare prices.

Search Diamonds

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