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

As of September 2026, 1.00 to 1.49ct I VS1 natural oval diamonds typically cost $2,021 USD to $5,070 USD, with a median price of $3,119 USD. There are currently 1,982 diamonds matching this specification available across retailers.

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

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

1.00 to 1.49ct I VS1 Natural Oval

Quick answer

As of September 2026, there are 1,982 natural oval diamonds with I color and VS1 clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run $2,021 USD to $5,070 USD, with a median of $3,119 USD. At least 62 retailers stock this exact specification. Half of all listings fall between $2,752 USD and $3,804 USD per carat. The same specification in lab grown form lists at a median of about $490 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. Oval natural stones in the index: 2,380 USD per carat, -9.6% 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

1,982

Lowest Price

$890 USD

Highest Price

$12,532 USD

Average Price

$3,379 USD