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

As of October 2026, 2.00 to 2.99ct D SI1 lab grown radiant diamonds typically cost $709 AUD to $2,230 AUD, with a median price of $1,182 AUD. There are currently 67 diamonds matching this specification available across retailers.

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

About 26% of these diamonds are available at multiple retailers, with an average price spread of 93%. A comparison tool like Carat Hunter lets you see all the prices side by side.

2.00 to 2.99ct D SI1 Lab Grown Radiant

Quick answer

As of October 2026, there are 67 lab grown radiant diamonds with D colour and SI1 clarity in the 2.00 to 2.99ct range available across retailers worldwide. Prices typically run $709 AUD to $2,230 AUD, with a median of $1,182 AUD. At least 32 retailers stock this exact specification, and 26% of the stones appear at more than one of them, with an average price spread of 93%. Half of all listings fall between $337 AUD and $853 AUD per carat. The same specification in natural form lists at a median of about $15,607 AUD per carat. Over the last 30 days the median price moved +22.1% and the number of listings moved +4.8%.

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 lab grown stones in the index: 474 USD per carat, -2.1% 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

Lowest Price

$303 AUD

Highest Price

$6,377 AUD

Average Price

$1,448 AUD

Market Intelligence

Retailers Selling

Cross Retailer %

26.3%

Price Spread

93.0%

30-Day Price Trend

+22.1%

30-Day Supply Change

+4.8%

Volatility (30d)

0.09

Price Range

Price per carat distribution across retailers

$390/ct

10th Percentile

$140

Median

$390

90th Percentile

$793

Score Distribution

111 diamonds scored across 4 quality tiers

Excellent

12 (10.8%)

Very Good

18 (16.2%)

Good

53 (47.7%)

Average

28 (25.2%)

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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