How much does a 2.00 to 2.99ct I I1 natural radiant diamond cost?

As of September 2026, 2.00 to 2.99ct I I1 natural radiant diamonds typically cost $9,431 AUD to $31,817 AUD, with a median price of $16,431 AUD. There are currently 51 diamonds matching this specification available across retailers.

Where can I find the best price on a I I1 radiant diamond?

About 16% of these diamonds are available at multiple retailers, with an average price spread of 40%. A comparison tool like Carat Hunter lets you see all the prices side by side.

2.00 to 2.99ct I I1 Natural Radiant

Quick answer

As of September 2026, there are 51 natural radiant diamonds with I colour and I1 clarity in the 2.00 to 2.99ct range available across retailers worldwide. Prices typically run $9,431 AUD to $31,817 AUD, with a median of $16,431 AUD. At least 16 retailers stock this exact specification, and 16% of the stones appear at more than one of them, with an average price spread of 40%. Half of all listings fall between $5,806 AUD and $8,981 AUD per carat. The same specification in lab grown form lists at a median of about $7,136 AUD per carat. Over the last 30 days the median price moved -32.9% and the number of listings moved -67.4%.

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

Caratlytics Diamond Price Index, August 2026: natural diamonds at 2,184 USD per carat and lab-grown at 464 USD per carat, a natural to lab ratio of 4.7 to 1. Radiant natural stones in the index: 2,765 USD per carat, +6.0% month on month. See the full index release

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

Last updated: September 2026

Available

Lowest Price

$5,962 AUD

Highest Price

$51,988 AUD

Average Price

$18,864 AUD

Market Intelligence

Retailers Selling

Cross Retailer %

16.3%

Price Spread

40.3%

30-Day Price Trend

-32.9%

30-Day Supply Change

-67.4%

Volatility (30d)

0.02

Price Range

Price per carat distribution across retailers

$5,125/ct

10th Percentile

$2,911

Median

$5,125

90th Percentile

$7,909

Score Distribution

51 diamonds scored across 4 quality tiers

Excellent

3 (5.9%)

Very Good

16 (31.4%)

Good

9 (17.6%)

Average

23 (45.1%)

Find Your Diamond

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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