How much does a 0.20 to 0.49ct G SI1 natural oval diamond cost?

As of November 2026, 0.20 to 0.49ct G SI1 natural oval diamonds typically cost €262 EUR to €671 EUR, with a median price of €412 EUR. There are currently 1,713 diamonds matching this specification available across retailers.

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

About 31% of these diamonds are available at multiple retailers, with an average price spread of 44%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.20 to 0.49ct G SI1 Natural Oval

Quick answer

As of November 2026, there are 1,713 natural oval diamonds with G color and SI1 clarity in the 0.20 to 0.49ct range available across retailers worldwide. Prices typically run €262 EUR to €671 EUR, with a median of €412 EUR. At least 26 retailers stock this exact specification, and 31% of the stones appear at more than one of them, with an average price spread of 44%. Half of all listings fall between €1,070 EUR and €1,653 EUR per carat. The same specification in lab grown form lists at a median of about €485 EUR per carat. Over the last 30 days the median price moved -2.0% and the number of listings moved +15.6%.

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: November 2026

Available

1,713

Lowest Price

€149 EUR

Highest Price

€1,234 EUR

Average Price

€445 EUR