How much does a 0.20 to 0.49ct I VS2 natural radiant diamond cost?

As of October 2026, 0.20 to 0.49ct I VS2 natural radiant diamonds typically cost $642 NZD to $1,136 NZD, with a median price of $828 NZD. There are currently 20 diamonds matching this specification available across retailers.

Where can I find the best price on a I VS2 radiant diamond?

About 40% of these diamonds are available at multiple retailers, with an average price spread of 20%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.20 to 0.49ct I VS2 Natural Radiant

Quick answer

As of October 2026, there are 20 natural radiant diamonds with I colour and VS2 clarity in the 0.20 to 0.49ct range available across retailers worldwide. Prices typically run $642 NZD to $1,136 NZD, with a median of $828 NZD. At least 14 retailers stock this exact specification, and 40% of the stones appear at more than one of them, with an average price spread of 20%. Half of all listings fall between $2,622 NZD and $3,227 NZD per carat. The same specification in lab grown form lists at a median of about $1,360 NZD per carat.

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

Caratlytics Diamond Price Index, September 2026: natural diamonds at 2,335 USD per carat and lab-grown at 443 USD per carat, a natural to lab ratio of 5.3 to 1. Radiant natural stones in the index: 3,091 USD per carat, +13.2% month on month. See the full index release

Figures come from current listings across more than 100 retailers and refresh daily. The index is a monthly release.

Last updated: October 2026

Available

Lowest Price

$432 NZD

Highest Price

$2,345 NZD

Average Price

$850 NZD