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

As of September 2026, 2.00 to 2.99ct D SI1 natural radiant diamonds typically cost $22,236 AUD to $46,725 AUD, with a median price of $31,020 AUD. There are currently 318 diamonds matching this specification available across retailers.

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

Compare prices across retailers on Carat Hunter to see all your options.

2.00 to 2.99ct D SI1 Natural Radiant

Quick answer

As of September 2026, there are 318 natural radiant diamonds with D colour and SI1 clarity in the 2.00 to 2.99ct range available across retailers worldwide. Prices typically run $22,236 AUD to $46,725 AUD, with a median of $31,020 AUD. At least 53 retailers stock this exact specification. Half of all listings fall between $11,896 AUD and $15,801 AUD per carat. The same specification in lab grown form lists at a median of about $538 AUD per carat.

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

318

Lowest Price

$14,395 AUD

Highest Price

$83,828 AUD

Average Price

$32,846 AUD

Market Intelligence

Retailers Selling

Price Spread

28.4%

Price Range

Price per carat distribution across retailers

$9,851/ct

10th Percentile

$7,310

Median

$9,851

90th Percentile

$12,935

Score Distribution

318 diamonds scored across 4 quality tiers

Excellent

40 (12.6%)

Very Good

64 (20.1%)

Good

137 (43.1%)

Average

77 (24.2%)

Find Your Diamond

Search 318 D SI1 radiant diamonds and compare prices.

Search Diamonds

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

Save 31%

Lab-Grown D SI1Same specifications, lab-grown origin

Save 96%

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