How much does a 1.00 to 1.49ct I VS1 natural cushion diamond cost?

As of November 2026, 1.00 to 1.49ct I VS1 natural cushion diamonds typically cost €1,270 EUR to €3,936 EUR, with a median price of €2,148 EUR. There are currently 697 diamonds matching this specification available across retailers.

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

About 32% of these diamonds are available at multiple retailers, with an average price spread of 60%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.00 to 1.49ct I VS1 Natural Cushion

Quick answer

As of November 2026, there are 697 natural cushion diamonds with I colour and VS1 clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run €1,270 EUR to €3,936 EUR, with a median of €2,148 EUR. At least 60 retailers stock this exact specification, and 32% of the stones appear at more than one of them, with an average price spread of 60%. Half of all listings fall between €1,756 EUR and €3,158 EUR per carat. The same specification in lab grown form lists at a median of about €486 EUR per carat. Over the last 30 days the median price moved -0.7% and the number of listings moved +10.9%.

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. Cushion natural stones in the index: 2,881 USD per carat, -2.5% 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

697

Lowest Price

€905 EUR

Highest Price

€9,246 EUR

Average Price

€2,454 EUR