How much does a 0.20 - 0.49ct H SI2 lab grown marquise diamond cost?

As of April 2026, 0.20 - 0.49ct H SI2 lab grown marquise diamonds are available from ￥28,060 JPY to ￥891,791 JPY, with an average price of ￥267,729 JPY. There are currently 49 diamonds matching this specification available across retailers.

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

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

0.20 - 0.49ct H SI2 Lab Grown Marquise

As of April 2026, there are 49 lab grown marquise diamonds with H color and SI2 clarity in the 0.20 - 0.49ct range available across retailers worldwide. Prices range from ￥28,060 JPY to ￥891,791 JPY, with an average of ￥267,729 JPY.

Last updated: April 2026

Available

Lowest Price

￥28,060 JPY

Highest Price

￥891,791 JPY

Average Price

￥267,729 JPY

Score Distribution

49 diamonds scored across 4 quality tiers

Excellent

3 (6.1%)

Very Good

14 (28.6%)

Good

17 (34.7%)

Average

15 (30.6%)

Find Your Diamond

Search 49 H SI2 marquise 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