How much does a 0.20 to 0.49ct I VS1 natural marquise diamond cost?

As of November 2026, 0.20 to 0.49ct I VS1 natural marquise diamonds typically cost €247 EUR to €613 EUR, with a median price of €392 EUR. There are currently 225 diamonds matching this specification available across retailers.

Where can I find the best price on a I VS1 marquise diamond?

About 44% of these diamonds are available at multiple retailers, with an average price spread of 41%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.20 to 0.49ct I VS1 Natural Marquise

Quick answer

As of November 2026, there are 225 natural marquise diamonds with I color and VS1 clarity in the 0.20 to 0.49ct range available across retailers worldwide. Prices typically run €247 EUR to €613 EUR, with a median of €392 EUR. At least 16 retailers stock this exact specification, and 44% of the stones appear at more than one of them, with an average price spread of 41%. Half of all listings fall between €943 EUR and €1,475 EUR per carat. The same specification in lab grown form lists at a median of about €603 EUR per carat. Over the last 30 days the median price moved -2.0% and the number of listings moved +2.4%.

Three of the best scored stones at this specification right now:

Caratlytics Diamond Price Index, October 2026: natural diamonds at 2,202 USD per carat and lab-grown at 462 USD per carat, a natural to lab ratio of 4.8 to 1. Marquise natural stones in the index: 2,177 USD per carat, -4.2% 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

225

Lowest Price

€152 EUR

Highest Price

€1,440 EUR

Average Price

€417 EUR