How much does a 0.20 - 0.49ct J SI1 natural oval diamond cost?

As of April 2026, 0.20 - 0.49ct J SI1 natural oval diamonds are available from $256 AUD to $1,089,720 AUD, with an average price of $11,665 AUD. There are currently 5,579 diamonds matching this specification available across retailers.

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0.20 - 0.49ct J SI1 Natural Oval

As of April 2026, there are 5,579 natural oval diamonds with J color and SI1 clarity in the 0.20 - 0.49ct range available across retailers worldwide. Prices range from $256 AUD to $1,089,720 AUD, with an average of $11,665 AUD.

Last updated: April 2026

Available

5,579

Lowest Price

$256 AUD

Highest Price

$1,089,720 AUD

Average Price

$11,665 AUD

Market Intelligence

Retailers Selling

Cross Retailer %

N/A

Price Spread

42.1%

30-Day Price Trend

N/A

30-Day Supply Change

N/A

Volatility (30d)

N/A

Price Range

Price per carat distribution across retailers

$1,045/ct

10th Percentile

$704

Median

$1,045

90th Percentile

$1,575

Score Distribution

5.6K diamonds scored across 4 quality tiers

Excellent

503 (9.0%)

Very Good

1,285 (23.0%)

Good

2,034 (36.5%)

Average

1,757 (31.5%)

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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