How much does a 0.20 to 0.49ct K VS1 natural round diamond cost?

As of November 6, 2026, 0.20 to 0.49ct K VS1 natural round diamonds typically cost $319 AUD to $936 AUD, with a median price of $516 AUD. There are currently 5,449 diamonds matching this specification available across retailers.

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

About 50% of these diamonds are available at multiple retailers, with an average price spread of 57%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.20 to 0.49ct K VS1 Natural Round

Quick answer

As of November 6, 2026, there are 5,449 natural round diamonds with K colour and VS1 clarity in the 0.20 to 0.49ct range available across retailers worldwide. Prices typically run $319 AUD to $936 AUD, with a median of $516 AUD. Half of all listings fall between $1,161 AUD and $1,977 AUD per carat. The same specification in lab grown form lists at a median of about $1,039 AUD per carat. Over the last 30 days the median price moved -3.2% and the number of listings moved +21.5%.

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

5,449

Lowest Price

$140 AUD

Highest Price

$2,650 AUD

Average Price

$579 AUD

Market Intelligence

Cross Retailer %

50.0%

Price Spread

57.2%

30-Day Price Trend

-3.2%

30-Day Supply Change

+21.5%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$1,000/ct

10th Percentile

$657

Median

$1,000

90th Percentile

$1,741

Score Distribution

5.4K diamonds scored across 4 quality tiers

Excellent

2,300 (42.2%)

Very Good

1,162 (21.3%)

Good

1,081 (19.8%)

Average

906 (16.6%)

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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