How much does a 2.00 to 2.99ct K SI2 natural round diamond cost?

As of November 6, 2026, 2.00 to 2.99ct K SI2 natural round diamonds typically cost $8,882 NZD to $25,342 NZD, with a median price of $14,952 NZD. There are currently 944 diamonds matching this specification available across retailers.

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

About 49% of these diamonds are available at multiple retailers, with an average price spread of 47%. A comparison tool like Carat Hunter lets you see all the prices side by side.

2.00 to 2.99ct K SI2 Natural Round

Quick answer

As of November 6, 2026, there are 944 natural round diamonds with K colour and SI2 clarity in the 2.00 to 2.99ct range available across retailers worldwide. Prices typically run $8,882 NZD to $25,342 NZD, with a median of $14,952 NZD. Half of all listings fall between $5,591 NZD and $8,861 NZD per carat. The same specification in lab grown form lists at a median of about $2,860 NZD per carat. Over the last 30 days the median price moved -0.9% and the number of listings moved +10.9%.

Three of the best scored stones at this specification right now:

Caratlytics Diamond Price Index, October 2026: natural diamonds at 2,202 USD per carat and lab-grown at 462 USD per carat, a natural to lab ratio of 4.8 to 1. Round natural stones in the index: 2,124 USD per carat, -6.9% month on month. See the full index release

Figures come from current listings across more than 125 retailers. The index is a monthly release.

Last updated: November 6, 2026

Available

944

Lowest Price

$4,278 NZD

Highest Price

$62,390 NZD

Average Price

$16,353 NZD