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

As of November 2026, 3.00 to 4.99ct I VS1 lab grown marquise diamonds typically cost €697 EUR to €2,917 EUR, with a median price of €1,286 EUR. There are currently 19 diamonds matching this specification available across retailers.

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

About 18% of these diamonds are available at multiple retailers, with an average price spread of 82%. A comparison tool like Carat Hunter lets you see all the prices side by side.

3.00 to 4.99ct I VS1 Lab Grown Marquise

Quick answer

As of November 2026, there are 19 lab grown marquise diamonds with I color and VS1 clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run €697 EUR to €2,917 EUR, with a median of €1,286 EUR. At least 32 retailers stock this exact specification, and 18% of the stones appear at more than one of them, with an average price spread of 82%. Half of all listings fall between €324 EUR and €819 EUR per carat. The same specification in natural form lists at a median of about €13,335 EUR per carat. Over the last 30 days the median price moved +47.7% and the number of listings moved +13.1%.

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

€553 EUR

Highest Price

€5,003 EUR

Average Price

€1,673 EUR

Market Intelligence

Retailers Selling

Cross Retailer %

17.5%

Price Spread

81.6%

30-Day Price Trend

+47.7%

30-Day Supply Change

+13.1%

Volatility (30d)

0.10

Price Range

Price per carat distribution across retailers

$679/ct

10th Percentile

$256

Median

$679

90th Percentile

$1,152

Score Distribution

34 diamonds scored across 4 quality tiers

Excellent

10 (29.4%)

Very Good

2 (5.9%)

Good

15 (44.1%)

Average

7 (20.6%)

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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