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 $26,603 SGD to $101,314 SGD, with a median price of $50,615 SGD. There are currently 561 diamonds matching this specification available across retailers.

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

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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 $26,603 SGD to $101,314 SGD, with a median of $50,615 SGD. At least 45 retailers stock this exact specification. Half of all listings fall between $14,381 SGD and $21,464 SGD per carat. The same specification in lab grown form lists at a median of about $9,763 SGD 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

$16,997 SGD

Highest Price

$212,347 SGD

Average Price

$58,152 SGD