How much does a 3.00 to 4.99ct J VS1 lab grown radiant diamond cost?

As of October 2026, 3.00 to 4.99ct J VS1 lab grown radiant diamonds typically cost $1,045 NZD to $7,915 NZD, with a median price of $1,965 NZD. There are currently 9 diamonds matching this specification available across retailers.

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

About 32% of these diamonds are available at multiple retailers, with an average price spread of 91%. A comparison tool like Carat Hunter lets you see all the prices side by side.

3.00 to 4.99ct J VS1 Lab Grown Radiant

Quick answer

As of October 2026, there are 9 lab grown radiant diamonds with J colour and VS1 clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run $1,045 NZD to $7,915 NZD, with a median of $1,965 NZD. At least 23 retailers stock this exact specification, and 32% of the stones appear at more than one of them, with an average price spread of 91%. Half of all listings fall between $440 NZD and $1,106 NZD per carat. The same specification in natural form lists at a median of about $13,665 NZD per carat. Over the last 30 days the median price moved -9.5% and the number of listings moved -14.2%.

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. Radiant lab grown stones in the index: 474 USD per carat, -2.1% 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

$683 NZD

Highest Price

$11,817 NZD

Average Price

$3,327 NZD

Market Intelligence

Retailers Selling

Cross Retailer %

31.6%

Price Spread

90.5%

30-Day Price Trend

-9.5%

30-Day Supply Change

-14.2%

Volatility (30d)

0.03

Price Range

Price per carat distribution across retailers

$415/ct

10th Percentile

$159

Median

$415

90th Percentile

$687

Score Distribution

17 diamonds scored across 4 quality tiers

Excellent

4 (23.5%)

Very Good

4 (23.5%)

Good

7 (41.2%)

Average

2 (11.8%)

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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