How much does a 0.20 to 0.49ct K VVS1 lab grown round diamond cost?

As of November 6, 2026, 0.20 to 0.49ct K VVS1 lab grown round diamonds typically cost $337 NZD to $1,055 NZD, with a median price of $431 NZD. There are currently 30 diamonds matching this specification available across retailers.

Where can I find the best price on a K VVS1 round diamond?

About 13% of these diamonds are available at multiple retailers, with an average price spread of 45%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.20 to 0.49ct K VVS1 Lab Grown Round

Quick answer

As of November 6, 2026, there are 30 lab grown round diamonds with K colour and VVS1 clarity in the 0.20 to 0.49ct range available across retailers worldwide. Prices typically run $337 NZD to $1,055 NZD, with a median of $431 NZD. Half of all listings fall between $1,127 NZD and $1,747 NZD per carat. The same specification in natural form lists at a median of about $1,762 NZD per carat. Over the last 30 days the median price moved -5.2% and the number of listings moved -3.9%.

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 lab grown stones in the index: 425 USD per carat, +1.7% 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

Lowest Price

$292 NZD

Highest Price

$2,811 NZD

Average Price

$631 NZD

Market Intelligence

Cross Retailer %

13.3%

Price Spread

45.3%

30-Day Price Trend

-5.2%

30-Day Supply Change

-3.9%

Volatility (30d)

0.02

Price Range

Price per carat distribution across retailers

$770/ct

10th Percentile

$616

Median

$770

90th Percentile

$1,483

Score Distribution

30 diamonds scored across 3 quality tiers

Very Good

4 (13.3%)

Good

21 (70.0%)

Average

5 (16.7%)

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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