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

As of September 2026, 2.00 to 2.99ct E SI1 natural cushion diamonds typically cost €8,973 EUR to €22,860 EUR, with a median price of €15,080 EUR. There are currently 530 diamonds matching this specification available across retailers.

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

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2.00 to 2.99ct E SI1 Natural Cushion

Quick answer

As of September 2026, there are 530 natural cushion diamonds with E colour and SI1 clarity in the 2.00 to 2.99ct range available across retailers worldwide. Prices typically run €8,973 EUR to €22,860 EUR, with a median of €15,080 EUR. At least 48 retailers stock this exact specification. Half of all listings fall between €5,753 EUR and €8,782 EUR per carat. The same specification in lab grown form lists at a median of about €309 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. Cushion natural stones in the index: 2,792 USD per carat, +1.1% 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

530

Lowest Price

€5,578 EUR

Highest Price

€62,474 EUR

Average Price

€16,095 EUR