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

As of September 2026, 1.00 to 1.49ct I VS1 natural cushion diamonds typically cost $1,474 USD to $4,171 USD, with a median price of $2,394 USD. There are currently 1,632 diamonds matching this specification available across retailers.

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

Compare prices across retailers on Carat Hunter to see all your options.

1.00 to 1.49ct I VS1 Natural Cushion

Quick answer

As of September 2026, there are 1,632 natural cushion diamonds with I color and VS1 clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run $1,474 USD to $4,171 USD, with a median of $2,394 USD. At least 60 retailers stock this exact specification. Half of all listings fall between $2,000 USD and $3,466 USD per carat. The same specification in lab grown form lists at a median of about $536 USD 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. Cushion natural stones in the index: 2,792 USD per carat, +1.1% 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

1,632

Lowest Price

$1,022 USD

Highest Price

$8,809 USD

Average Price

$2,649 USD