How much does a 0.20 to 0.49ct I VS1 natural oval diamond cost?

As of October 2026, 0.20 to 0.49ct I VS1 natural oval diamonds typically cost $534 NZD to $1,344 NZD, with a median price of $834 NZD. There are currently 405 diamonds matching this specification available across retailers.

Where can I find the best price on a I VS1 oval diamond?

About 25% of these diamonds are available at multiple retailers, with an average price spread of 43%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.20 to 0.49ct I VS1 Natural Oval

Quick answer

As of October 2026, there are 405 natural oval diamonds with I colour and VS1 clarity in the 0.20 to 0.49ct range available across retailers worldwide. Prices typically run $534 NZD to $1,344 NZD, with a median of $834 NZD. At least 19 retailers stock this exact specification, and 25% of the stones appear at more than one of them, with an average price spread of 43%. Half of all listings fall between $2,616 NZD and $4,032 NZD per carat. The same specification in lab grown form lists at a median of about $1,137 NZD per carat. Over the last 30 days the median price moved -9.7% and the number of listings moved +36.5%.

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. Oval natural stones in the index: 2,655 USD per carat, +10.2% 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

405

Lowest Price

$335 NZD

Highest Price

$3,388 NZD

Average Price

$888 NZD