How much does a 1.50 to 1.99ct G VS1 lab grown round diamond cost?

As of October 2026, 1.50 to 1.99ct G VS1 lab grown round diamonds typically cost $383 NZD to $2,222 NZD, with a median price of $965 NZD. There are currently 2,229 diamonds matching this specification available across retailers.

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

About 46% of these diamonds are available at multiple retailers, with an average price spread of 90%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.50 to 1.99ct G VS1 Lab Grown Round

Quick answer

As of October 2026, there are 2,229 lab grown round diamonds with G colour and VS1 clarity in the 1.50 to 1.99ct range available across retailers worldwide. Prices typically run $383 NZD to $2,222 NZD, with a median of $965 NZD. At least 59 retailers stock this exact specification, and 46% of the stones appear at more than one of them, with an average price spread of 90%. Half of all listings fall between $444 NZD and $1,073 NZD per carat. The same specification in natural form lists at a median of about $14,418 NZD per carat. Over the last 30 days the median price moved +13.7% and the number of listings moved -3.0%.

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

2,229

Lowest Price

$312 NZD

Highest Price

$5,559 NZD

Average Price

$1,216 NZD

Market Intelligence

Retailers Selling

Cross Retailer %

45.9%

Price Spread

89.5%

30-Day Price Trend

+13.7%

30-Day Supply Change

-3.0%

Volatility (30d)

0.07

Price Range

Price per carat distribution across retailers

$395/ct

10th Percentile

$154

Median

$395

90th Percentile

$760

Score Distribution

4.7K diamonds scored across 4 quality tiers

Excellent

1,810 (38.4%)

Very Good

436 (9.3%)

Good

936 (19.9%)

Average

1,529 (32.5%)

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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