How much does a 3.00 to 4.99ct E SI1 natural radiant diamond cost?

As of October 2026, 3.00 to 4.99ct E SI1 natural radiant diamonds typically cost €35,730 EUR to €75,493 EUR, with a median price of €50,180 EUR. There are currently 61 diamonds matching this specification available across retailers.

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

About 36% of these diamonds are available at multiple retailers, with an average price spread of 19%. A comparison tool like Carat Hunter lets you see all the prices side by side.

3.00 to 4.99ct E SI1 Natural Radiant

Quick answer

As of October 2026, there are 61 natural radiant diamonds with E colour and SI1 clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run €35,730 EUR to €75,493 EUR, with a median of €50,180 EUR. At least 49 retailers stock this exact specification, and 36% of the stones appear at more than one of them, with an average price spread of 19%. Half of all listings fall between €12,302 EUR and €14,889 EUR per carat. The same specification in lab grown form lists at a median of about €366 EUR per carat. Over the last 30 days the median price moved -1.1% and the number of listings moved +17.4%.

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

€21,021 EUR

Highest Price

€124,032 EUR

Average Price

€53,439 EUR