How much does a 3.00 to 4.99ct E SI2 natural round diamond cost?

As of September 2026, 3.00 to 4.99ct E SI2 natural round diamonds typically cost $34,136 NZD to $129,702 NZD, with a median price of $65,740 NZD. There are currently 561 diamonds matching this specification available across retailers.

Where can I find the best price on a E SI2 round diamond?

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

3.00 to 4.99ct E SI2 Natural Round

Quick answer

As of September 2026, there are 561 natural round diamonds with E colour and SI2 clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run $34,136 NZD to $129,702 NZD, with a median of $65,740 NZD. At least 45 retailers stock this exact specification. Half of all listings fall between $18,537 NZD and $27,762 NZD per carat. The same specification in lab grown form lists at a median of about $12,579 NZD 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. Round natural stones in the index: 2,094 USD per carat, -3.8% 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

561

Lowest Price

$21,899 NZD

Highest Price

$273,593 NZD

Average Price

$74,863 NZD