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

As of October 2026, 2.00 to 2.99ct H SI1 lab grown radiant diamonds typically cost $903 AUD to $6,964 AUD, with a median price of $1,874 AUD. There are currently 42 diamonds matching this specification available across retailers.

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

About 29% of these diamonds are available at multiple retailers, with an average price spread of 91%. A comparison tool like Carat Hunter lets you see all the prices side by side.

2.00 to 2.99ct H SI1 Lab Grown Radiant

Quick answer

As of October 2026, there are 42 lab grown radiant diamonds with H colour and SI1 clarity in the 2.00 to 2.99ct range available across retailers worldwide. Prices typically run $903 AUD to $6,964 AUD, with a median of $1,874 AUD. At least 31 retailers stock this exact specification, and 29% of the stones appear at more than one of them, with an average price spread of 91%. Half of all listings fall between $651 AUD and $2,604 AUD per carat. The same specification in natural form lists at a median of about $11,881 AUD per carat. Over the last 30 days the median price moved -27.7% and the number of listings moved +3.9%.

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 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

$367 AUD

Highest Price

$19,798 AUD

Average Price

$2,895 AUD

Market Intelligence

Retailers Selling

Cross Retailer %

28.6%

Price Spread

91.5%

30-Day Price Trend

-27.7%

30-Day Supply Change

+3.9%

Volatility (30d)

0.11

Price Range

Price per carat distribution across retailers

$1,500/ct

10th Percentile

$277

Median

$1,500

90th Percentile

$2,718

Score Distribution

80 diamonds scored across 4 quality tiers

Excellent

17 (21.3%)

Very Good

28 (35.0%)

Good

20 (25.0%)

Average

15 (18.8%)

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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