How much does a 3.00 to 4.99ct I SI1 natural emerald diamond cost?

As of September 2026, 3.00 to 4.99ct I SI1 natural emerald diamonds typically cost €16,041 EUR to €60,181 EUR, with a median price of €29,293 EUR. There are currently 204 diamonds matching this specification available across retailers.

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

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3.00 to 4.99ct I SI1 Natural Emerald

Quick answer

As of September 2026, there are 204 natural emerald diamonds with I colour and SI1 clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run €16,041 EUR to €60,181 EUR, with a median of €29,293 EUR. At least 49 retailers stock this exact specification. Half of all listings fall between €8,249 EUR and €11,821 EUR per carat. The same specification in lab grown form lists at a median of about €927 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. Emerald natural stones in the index: 2,166 USD per carat, -6.6% 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

204

Lowest Price

€9,081 EUR

Highest Price

€119,110 EUR

Average Price

€33,873 EUR