How much does a 2.00 to 2.99ct D SI1 natural radiant diamond cost?

As of October 2026, 2.00 to 2.99ct D SI1 natural radiant diamonds typically cost $23,146 AUD to $52,531 AUD, with a median price of $33,974 AUD. There are currently 107 diamonds matching this specification available across retailers.

Where can I find the best price on a D SI1 radiant diamond?

About 38% of these diamonds are available at multiple retailers, with an average price spread of 29%. A comparison tool like Carat Hunter lets you see all the prices side by side.

2.00 to 2.99ct D SI1 Natural Radiant

Quick answer

As of October 2026, there are 107 natural radiant diamonds with D colour and SI1 clarity in the 2.00 to 2.99ct range available across retailers worldwide. Prices typically run $23,146 AUD to $52,531 AUD, with a median of $33,974 AUD. At least 60 retailers stock this exact specification, and 38% of the stones appear at more than one of them, with an average price spread of 29%. Half of all listings fall between $11,974 AUD and $16,003 AUD per carat. The same specification in lab grown form lists at a median of about $545 AUD per carat. Over the last 30 days the median price moved -0.8% and the number of listings moved +17.9%.

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. Radiant natural stones in the index: 3,091 USD per carat, +13.2% 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

107

Lowest Price

$14,448 AUD

Highest Price

$85,583 AUD

Average Price

$36,006 AUD

Market Intelligence

Retailers Selling

Cross Retailer %

38.4%

Price Spread

29.1%

30-Day Price Trend

-0.8%

30-Day Supply Change

+17.9%

Volatility (30d)

0.00

Price Range

Price per carat distribution across retailers

$9,729/ct

10th Percentile

$7,264

Median

$9,729

90th Percentile

$13,207

Score Distribution

264 diamonds scored across 4 quality tiers

Excellent

40 (15.2%)

Very Good

61 (23.1%)

Good

45 (17.0%)

Average

118 (44.7%)

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Consider Instead

Save money without compromising on what matters. These alternatives are visually similar but cost less.

D SI2SI2 inclusions are not visible without magnification

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Lab-Grown D SI1Same specifications, lab-grown origin

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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