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

As of September 2026, 2.00 to 2.99ct E SI1 natural round diamonds typically cost €12,561 EUR to €31,641 EUR, with a median price of €17,899 EUR. There are currently 1,047 diamonds matching this specification available across retailers.

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

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2.00 to 2.99ct E SI1 Natural Round

Quick answer

As of September 2026, there are 1,047 natural round diamonds with E colour and SI1 clarity in the 2.00 to 2.99ct range available across retailers worldwide. Prices typically run €12,561 EUR to €31,641 EUR, with a median of €17,899 EUR. At least 56 retailers stock this exact specification. Half of all listings fall between €7,515 EUR and €10,346 EUR per carat. The same specification in lab grown form lists at a median of about €327 EUR 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. Round natural stones in the index: 2,094 USD per carat, -3.8% 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

1,047

Lowest Price

€8,510 EUR

Highest Price

€64,564 EUR

Average Price

€20,364 EUR