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

As of October 2026, 1.50 to 1.99ct J VS1 lab grown round diamonds typically cost $888 NZD to $4,798 NZD, with a median price of $2,279 NZD. There are currently 411 diamonds matching this specification available across retailers.

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

About 41% of these diamonds are available at multiple retailers, with an average price spread of 80%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.50 to 1.99ct J VS1 Lab Grown Round

Quick answer

As of October 2026, there are 411 lab grown round diamonds with J colour and VS1 clarity in the 1.50 to 1.99ct range available across retailers worldwide. Prices typically run $888 NZD to $4,798 NZD, with a median of $2,279 NZD. At least 26 retailers stock this exact specification, and 41% of the stones appear at more than one of them, with an average price spread of 80%. Half of all listings fall between $1,697 NZD and $3,290 NZD per carat. The same specification in natural form lists at a median of about $6,656 NZD per carat. Over the last 30 days the median price moved -6.5% and the number of listings moved +1.7%.

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

411

Lowest Price

$495 NZD

Highest Price

$12,830 NZD

Average Price

$2,813 NZD

Market Intelligence

Retailers Selling

Cross Retailer %

41.2%

Price Spread

80.3%

30-Day Price Trend

-6.5%

30-Day Supply Change

+1.7%

Volatility (30d)

0.02

Price Range

Price per carat distribution across retailers

$1,114/ct

10th Percentile

$529

Median

$1,114

90th Percentile

$2,287

Score Distribution

720 diamonds scored across 4 quality tiers

Excellent

338 (46.9%)

Very Good

123 (17.1%)

Good

219 (30.4%)

Average

40 (5.6%)

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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