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

As of November 2026, 3.00 to 4.99ct J VS1 lab grown marquise diamonds typically cost €974 EUR to €3,456 EUR, with a median price of €1,144 EUR. There are currently 2 diamonds matching this specification available across retailers.

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

About 20% of these diamonds are available at multiple retailers, with an average price spread of 81%. A comparison tool like Carat Hunter lets you see all the prices side by side.

3.00 to 4.99ct J VS1 Lab Grown Marquise

Quick answer

As of November 2026, there are 2 lab grown marquise diamonds with J colour and VS1 clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run €974 EUR to €3,456 EUR, with a median of €1,144 EUR. At least 10 retailers stock this exact specification, and 20% of the stones appear at more than one of them, with an average price spread of 81%. Half of all listings fall between €335 EUR and €786 EUR per carat. The same specification in natural form lists at a median of about €10,738 EUR per carat.

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. Marquise lab grown stones in the index: 485 USD per carat, -3.2% 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

Lowest Price

€953 EUR

Highest Price

€4,395 EUR

Average Price

€1,909 EUR

Market Intelligence

Retailers Selling

Cross Retailer %

20.0%

Price Spread

81.5%

Price Range

Price per carat distribution across retailers

$619/ct

10th Percentile

$354

Median

$619

90th Percentile

$1,028

Score Distribution

4 diamonds scored across 3 quality tiers

Very Good

2 (50.0%)

Good

1 (25.0%)

Average

1 (25.0%)

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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