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

As of October 2026, 2.00 to 2.99ct E SI1 natural cushion diamonds typically cost €8,967 EUR to €27,995 EUR, with a median price of €15,666 EUR. There are currently 238 diamonds matching this specification available across retailers.

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

About 35% of these diamonds are available at multiple retailers, with an average price spread of 45%. A comparison tool like Carat Hunter lets you see all the prices side by side.

2.00 to 2.99ct E SI1 Natural Cushion

Quick answer

As of October 2026, there are 238 natural cushion diamonds with E colour and SI1 clarity in the 2.00 to 2.99ct range available across retailers worldwide. Prices typically run €8,967 EUR to €27,995 EUR, with a median of €15,666 EUR. At least 57 retailers stock this exact specification, and 35% of the stones appear at more than one of them, with an average price spread of 45%. Half of all listings fall between €5,650 EUR and €8,830 EUR per carat. The same specification in lab grown form lists at a median of about €359 EUR per carat. Over the last 30 days the median price moved -1.8% and the number of listings moved +10.3%.

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. Cushion natural stones in the index: 2,948 USD per carat, +1.7% 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

238

Lowest Price

€5,923 EUR

Highest Price

€60,783 EUR

Average Price

€17,865 EUR