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

As of October 2026, 0.20 to 0.49ct G VVS1 lab grown round diamonds typically cost $164 NZD to $1,044 NZD, with a median price of $449 NZD. There are currently 45 diamonds matching this specification available across retailers.

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

About 47% of these diamonds are available at multiple retailers, with an average price spread of 151%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.20 to 0.49ct G VVS1 Lab Grown Round

Quick answer

As of October 2026, there are 45 lab grown round diamonds with G colour and VVS1 clarity in the 0.20 to 0.49ct range available across retailers worldwide. Prices typically run $164 NZD to $1,044 NZD, with a median of $449 NZD. At least 18 retailers stock this exact specification, and 47% of the stones appear at more than one of them, with an average price spread of 151%. Half of all listings fall between $560 NZD and $1,889 NZD per carat. The same specification in natural form lists at a median of about $3,513 NZD per carat. Over the last 30 days the median price moved -43.6% and the number of listings moved -32.8%.

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 lab grown stones in the index: 414 USD per carat, -5.0% 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

$130 NZD

Highest Price

$2,293 NZD

Average Price

$542 NZD

Market Intelligence

Retailers Selling

Cross Retailer %

47.2%

Price Spread

151.4%

30-Day Price Trend

-43.6%

30-Day Supply Change

-32.8%

Volatility (30d)

0.17

Price Range

Price per carat distribution across retailers

$493/ct

10th Percentile

$266

Median

$493

90th Percentile

$1,409

Score Distribution

160 diamonds scored across 4 quality tiers

Excellent

31 (19.4%)

Very Good

40 (25.0%)

Good

66 (41.3%)

Average

23 (14.4%)

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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