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

As of September 2026, 2.00 to 2.99ct J SI1 natural radiant diamonds typically cost $9,618 AUD to $26,569 AUD, with a median price of $14,729 AUD. There are currently 308 diamonds matching this specification available across retailers.

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

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

2.00 to 2.99ct J SI1 Natural Radiant

Quick answer

As of September 2026, there are 308 natural radiant diamonds with J colour and SI1 clarity in the 2.00 to 2.99ct range available across retailers worldwide. Prices typically run $9,618 AUD to $26,569 AUD, with a median of $14,729 AUD. At least 48 retailers stock this exact specification. Half of all listings fall between $5,342 AUD and $8,019 AUD per carat. The same specification in lab grown form lists at a median of about $2,628 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

308

Lowest Price

$5,364 AUD

Highest Price

$59,069 AUD

Average Price

$16,613 AUD

Market Intelligence

Retailers Selling

Price Spread

40.3%

Price Range

Price per carat distribution across retailers

$4,732/ct

10th Percentile

$3,090

Median

$4,732

90th Percentile

$6,596

Score Distribution

308 diamonds scored across 4 quality tiers

Excellent

28 (9.1%)

Very Good

73 (23.7%)

Good

107 (34.7%)

Average

100 (32.5%)

Find Your Diamond

Search 308 J 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.

J SI2SI2 inclusions are not visible without magnification

Save 8%

Lab-Grown J SI1Same specifications, lab-grown origin

Save 59%

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