How much does a 1.00 to 1.49ct I FL natural heart diamond cost?

As of September 2026, 1.00 to 1.49ct I FL natural heart diamonds typically cost $3,228 USD to $3,890 USD, with a median price of $3,583 USD. There are currently 11 diamonds matching this specification available across retailers.

Where can I find the best price on a I FL heart diamond?

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

1.00 to 1.49ct I FL Natural Heart

Quick answer

As of September 2026, there are 11 natural heart diamonds with I color and FL clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run $3,228 USD to $3,890 USD, with a median of $3,583 USD. At least 1 retailers stock this exact specification. Half of all listings fall between $3,267 USD and $3,506 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. Heart natural stones in the index: 2,261 USD per carat, +1.7% 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

Lowest Price

$3,076 USD

Highest Price

$4,181 USD

Average Price

$3,565 USD