How much does a 0.50 to 0.74ct E SI1 natural oval diamond cost?

As of October 2026, 0.50 to 0.74ct E SI1 natural oval diamonds typically cost €539 EUR to €1,550 EUR, with a median price of €801 EUR. There are currently 2,142 diamonds matching this specification available across retailers.

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

About 26% of these diamonds are available at multiple retailers, with an average price spread of 48%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.50 to 0.74ct E SI1 Natural Oval

Quick answer

As of October 2026, there are 2,142 natural oval diamonds with E colour and SI1 clarity in the 0.50 to 0.74ct range available across retailers worldwide. Prices typically run €539 EUR to €1,550 EUR, with a median of €801 EUR. At least 61 retailers stock this exact specification, and 26% of the stones appear at more than one of them, with an average price spread of 48%. Half of all listings fall between €1,258 EUR and €1,989 EUR per carat. The same specification in lab grown form lists at a median of about €594 EUR per carat. Over the last 30 days the median price moved -4.0% and the number of listings moved +6.0%.

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. Oval natural stones in the index: 2,655 USD per carat, +10.2% 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

2,142

Lowest Price

€337 EUR

Highest Price

€3,023 EUR

Average Price

€968 EUR