How much does a 1.00 to 1.49ct I IF lab grown heart diamond cost?

As of September 2026, 1.00 to 1.49ct I IF lab grown heart diamonds typically cost $2,384 USD to $6,178 USD, with a median price of $4,783 USD. There are currently 4 diamonds matching this specification available across retailers.

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

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

1.00 to 1.49ct I IF Lab Grown Heart

Quick answer

As of September 2026, there are 4 lab grown heart diamonds with I color and IF clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run $2,384 USD to $6,178 USD, with a median of $4,783 USD. At least 5 retailers stock this exact specification. Half of all listings fall between $2,413 USD and $4,092 USD per carat. The same specification in natural form lists at a median of about $3,332 USD per carat.

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 lab grown stones in the index: 440 USD per carat, -9.4% 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

$1,647 USD

Highest Price

$6,484 USD

Average Price

$4,424 USD