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

As of April 2026, 0.20 - 0.49ct J SI2 lab grown cushion diamonds are available from $266 AUD to $133,690 AUD, with an average price of $14,986 AUD. There are currently 176 diamonds matching this specification available across retailers.

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0.20 - 0.49ct J SI2 Lab Grown Cushion

As of April 2026, there are 176 lab grown cushion diamonds with J color and SI2 clarity in the 0.20 - 0.49ct range available across retailers worldwide. Prices range from $266 AUD to $133,690 AUD, with an average of $14,986 AUD.

Last updated: April 2026

Available

176

Lowest Price

$266 AUD

Highest Price

$133,690 AUD

Average Price

$14,986 AUD

Score Distribution

176 diamonds scored across 4 quality tiers

Excellent

6 (3.4%)

Very Good

28 (15.9%)

Good

54 (30.7%)

Average

88 (50.0%)

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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