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

As of November 2026, 3.00 to 4.99ct J VS1 lab grown round diamonds typically cost €515 EUR to €1,428 EUR, with a median price of €992 EUR. There are currently 421 diamonds matching this specification available across retailers.

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

About 39% 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 Round

Quick answer

As of November 2026, there are 421 lab grown round diamonds with J color and VS1 clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run €515 EUR to €1,428 EUR, with a median of €992 EUR. At least 26 retailers stock this exact specification, and 39% of the stones appear at more than one of them, with an average price spread of 91%. Half of all listings fall between €227 EUR and €526 EUR per carat. The same specification in natural form lists at a median of about €10,110 EUR per carat. Over the last 30 days the median price moved +1.9% and the number of listings moved -0.3%.

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: November 2026

Available

421

Lowest Price

€377 EUR

Highest Price

€6,133 EUR

Average Price

€1,064 EUR

Market Intelligence

Retailers Selling

Cross Retailer %

38.9%

Price Spread

91.3%

30-Day Price Trend

+1.9%

30-Day Supply Change

-0.3%

Volatility (30d)

0.02

Price Range

Price per carat distribution across retailers

$366/ct

10th Percentile

$214

Median

$366

90th Percentile

$768

Score Distribution

807 diamonds scored across 4 quality tiers

Excellent

308 (38.2%)

Very Good

66 (8.2%)

Good

304 (37.7%)

Average

129 (16.0%)

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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