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 $2,232 NZD, with a median price of $979 NZD. There are currently 2,231 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 89%. 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 2,231 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 $2,232 NZD, with a median of $979 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 89%. Half of all listings fall between $445 NZD and $1,075 NZD per carat. The same specification in natural form lists at a median of about $14,406 NZD per carat. Over the last 30 days the median price moved +14.4% and the number of listings moved -2.6%.

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

2,231

Lowest Price

$312 NZD

Highest Price

$5,721 NZD

Average Price

$1,226 NZD

Market Intelligence

Retailers Selling

Cross Retailer %

46.1%

Price Spread

89.5%

30-Day Price Trend

+14.4%

30-Day Supply Change

-2.6%

Volatility (30d)

0.07

Price Range

Price per carat distribution across retailers

$395/ct

10th Percentile

$153

Median

$395

90th Percentile

$763

Score Distribution

4.7K diamonds scored across 4 quality tiers

Excellent

1,786 (38.1%)

Very Good

429 (9.2%)

Good

957 (20.4%)

Average

1,515 (32.3%)

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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