How much does a 3.00 to 4.99ct E SI1 natural heart diamond cost?

As of September 2026, 3.00 to 4.99ct E SI1 natural heart diamonds typically cost $40,281 AUD to $114,650 AUD, with a median price of $59,415 AUD. There are currently 86 diamonds matching this specification available across retailers.

Where can I find the best price on a E SI1 heart diamond?

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

3.00 to 4.99ct E SI1 Natural Heart

Quick answer

As of September 2026, there are 86 natural heart diamonds with E colour and SI1 clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run $40,281 AUD to $114,650 AUD, with a median of $59,415 AUD. At least 33 retailers stock this exact specification. Half of all listings fall between $14,354 AUD and $16,900 AUD per carat. The same specification in lab grown form lists at a median of about $504 AUD 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

$30,934 AUD

Highest Price

$192,751 AUD

Average Price

$72,953 AUD