How much does a 0.20 to 0.49ct J IF natural round diamond cost?

As of October 2026, 0.20 to 0.49ct J IF natural round diamonds typically cost $391 AUD to $1,123 AUD, with a median price of $634 AUD. There are currently 2,167 diamonds matching this specification available across retailers.

Where can I find the best price on a J IF round diamond?

About 41% of these diamonds are available at multiple retailers, with an average price spread of 58%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.20 to 0.49ct J IF Natural Round

Quick answer

As of October 2026, there are 2,167 natural round diamonds with J colour and IF clarity in the 0.20 to 0.49ct range available across retailers worldwide. Prices typically run $391 AUD to $1,123 AUD, with a median of $634 AUD. At least 28 retailers stock this exact specification, and 41% of the stones appear at more than one of them, with an average price spread of 58%. Half of all listings fall between $1,469 AUD and $2,557 AUD per carat. The same specification in lab grown form lists at a median of about $1,423 AUD per carat. Over the last 30 days the median price moved -6.8% and the number of listings moved +14.0%.

Three of the best scored stones at this specification right now:

Caratlytics Diamond Price Index, September 2026: natural diamonds at 2,335 USD per carat and lab-grown at 443 USD per carat, a natural to lab ratio of 5.3 to 1. Round natural stones in the index: 2,248 USD per carat, +7.6% month on month. See the full index release

Figures come from current listings across more than 100 retailers and refresh daily. The index is a monthly release.

Last updated: October 2026

Available

2,167

Lowest Price

$167 AUD

Highest Price

$2,638 AUD

Average Price

$700 AUD

Market Intelligence

Retailers Selling

Cross Retailer %

41.0%

Price Spread

57.6%

30-Day Price Trend

-6.8%

30-Day Supply Change

+14.0%

Volatility (30d)

0.02

Price Range

Price per carat distribution across retailers

$1,326/ct

10th Percentile

$828

Median

$1,326

90th Percentile

$2,407

Score Distribution

4.4K diamonds scored across 5 quality tiers

Exceptional

2 (0.0%)

Excellent

1,562 (35.5%)

Very Good

1,069 (24.3%)

Good

1,015 (23.1%)

Average

746 (17.0%)

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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