How much does a 3.00 to 4.99ct G SI1 natural oval diamond cost?

As of September 2026, 3.00 to 4.99ct G SI1 natural oval diamonds typically cost $42,365 NZD to $134,451 NZD, with a median price of $77,687 NZD. There are currently 400 diamonds matching this specification available across retailers.

Where can I find the best price on a G SI1 oval diamond?

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

3.00 to 4.99ct G SI1 Natural Oval

Quick answer

As of September 2026, there are 400 natural oval diamonds with G colour and SI1 clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run $42,365 NZD to $134,451 NZD, with a median of $77,687 NZD. At least 50 retailers stock this exact specification. Half of all listings fall between $21,799 NZD and $28,658 NZD per carat. The same specification in lab grown form lists at a median of about $570 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. Oval natural stones in the index: 2,380 USD per carat, -9.6% 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

400

Lowest Price

$21,742 NZD

Highest Price

$266,933 NZD

Average Price

$84,889 NZD