How much does a 0.50 to 0.74ct I VS1 natural radiant diamond cost?

As of October 2026, 0.50 to 0.74ct I VS1 natural radiant diamonds typically cost $539 USD to $1,237 USD, with a median price of $862 USD. There are currently 159 diamonds matching this specification available across retailers.

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

About 31% of these diamonds are available at multiple retailers, with an average price spread of 52%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.50 to 0.74ct I VS1 Natural Radiant

Quick answer

As of October 2026, there are 159 natural radiant diamonds with I color and VS1 clarity in the 0.50 to 0.74ct range available across retailers worldwide. Prices typically run $539 USD to $1,237 USD, with a median of $862 USD. At least 60 retailers stock this exact specification, and 31% of the stones appear at more than one of them, with an average price spread of 52%. Half of all listings fall between $1,250 USD and $2,061 USD per carat. The same specification in lab grown form lists at a median of about $605 USD per carat. Over the last 30 days the median price moved +0.5% and the number of listings moved -3.3%.

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. Radiant natural stones in the index: 3,091 USD per carat, +13.2% 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

159

Lowest Price

$326 USD

Highest Price

$3,256 USD

Average Price

$901 USD