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

As of October 2026, 0.20 to 0.49ct I VS2 natural round diamonds typically cost $476 NZD to $1,263 NZD, with a median price of $766 NZD. There are currently 9,576 diamonds matching this specification available across retailers.

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

About 40% of these diamonds are available at multiple retailers, with an average price spread of 62%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.20 to 0.49ct I VS2 Natural Round

Quick answer

As of October 2026, there are 9,576 natural round diamonds with I colour and VS2 clarity in the 0.20 to 0.49ct range available across retailers worldwide. Prices typically run $476 NZD to $1,263 NZD, with a median of $766 NZD. At least 38 retailers stock this exact specification, and 40% of the stones appear at more than one of them, with an average price spread of 62%. Half of all listings fall between $2,053 NZD and $3,686 NZD per carat. The same specification in lab grown form lists at a median of about $2,717 NZD per carat. Over the last 30 days the median price moved -11.7% and the number of listings moved +9.5%.

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. Round natural stones in the index: 2,248 USD per carat, +7.6% 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

9,576

Lowest Price

$182 NZD

Highest Price

$3,599 NZD

Average Price

$851 NZD

Market Intelligence

Retailers Selling

Cross Retailer %

39.5%

Price Spread

62.3%

30-Day Price Trend

-11.7%

30-Day Supply Change

+9.5%

Volatility (30d)

0.03

Price Range

Price per carat distribution across retailers

$1,471/ct

10th Percentile

$970

Median

$1,471

90th Percentile

$2,710

Score Distribution

15.6K diamonds scored across 4 quality tiers

Excellent

5,221 (33.5%)

Very Good

5,024 (32.3%)

Good

2,972 (19.1%)

Average

2,354 (15.1%)

Find Your Diamond

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Related Specifications

D IF D VVS1 D VVS2 D VS1 D VS2 D SI1 E IF E VVS1 E VVS2 E VS1 E VS2 E SI1 F IF F VVS1 F VVS2 F VS1 F VS2 F SI1 G IF G VVS1 G VVS2 G VS1 G VS2 G SI1 H IF H VVS1 H VVS2 H VS1 H VS2 H SI1 I IF I VVS1 I VVS2 I VS1 I VS2 I SI1