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

As of October 2026, 2.00 to 2.99ct E SI1 natural radiant diamonds typically cost $20,269 AUD to $48,094 AUD, with a median price of $28,455 AUD. There are currently 85 diamonds matching this specification available across retailers.

Where can I find the best price on a E 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 E SI1 Natural Radiant

Quick answer

As of October 2026, there are 85 natural radiant diamonds with E colour and SI1 clarity in the 2.00 to 2.99ct range available across retailers worldwide. Prices typically run $20,269 AUD to $48,094 AUD, with a median of $28,455 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 $11,975 AUD and $16,006 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

Lowest Price

$13,332 AUD

Highest Price

$83,380 AUD

Average Price

$32,028 AUD