How much does a 3.00 to 4.99ct G SI2 natural heart diamond cost?

As of September 2026, 3.00 to 4.99ct G SI2 natural heart diamonds typically cost $13,223 USD to $45,318 USD, with a median price of $20,298 USD. There are currently 136 diamonds matching this specification available across retailers.

Where can I find the best price on a G SI2 heart diamond?

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3.00 to 4.99ct G SI2 Natural Heart

Quick answer

As of September 2026, there are 136 natural heart diamonds with G color and SI2 clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run $13,223 USD to $45,318 USD, with a median of $20,298 USD. At least 8 retailers stock this exact specification. Half of all listings fall between $4,147 USD and $4,894 USD per carat. The same specification in lab grown form lists at a median of about $264 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

136

Lowest Price

$10,426 USD

Highest Price

$176,158 USD

Average Price

$27,285 USD