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

As of November 2026, 3.00 to 4.99ct I VS1 lab grown radiant diamonds typically cost €585 EUR to €3,617 EUR, with a median price of €1,284 EUR. There are currently 42 diamonds matching this specification available across retailers.

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

About 24% of these diamonds are available at multiple retailers, with an average price spread of 120%. A comparison tool like Carat Hunter lets you see all the prices side by side.

3.00 to 4.99ct I VS1 Lab Grown Radiant

Quick answer

As of November 2026, there are 42 lab grown radiant diamonds with I color and VS1 clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run €585 EUR to €3,617 EUR, with a median of €1,284 EUR. At least 37 retailers stock this exact specification, and 24% of the stones appear at more than one of them, with an average price spread of 120%. Half of all listings fall between €264 EUR and €741 EUR per carat. The same specification in natural form lists at a median of about €11,564 EUR per carat. Over the last 30 days the median price moved +5.2% and the number of listings moved -4.0%.

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: November 2026

Available

Lowest Price

€401 EUR

Highest Price

€8,629 EUR

Average Price

€1,745 EUR

Market Intelligence

Retailers Selling

Cross Retailer %

24.0%

Price Spread

120.1%

30-Day Price Trend

+5.2%

30-Day Supply Change

-4.0%

Volatility (30d)

0.03

Price Range

Price per carat distribution across retailers

$444/ct

10th Percentile

$193

Median

$444

90th Percentile

$1,452

Score Distribution

62 diamonds scored across 4 quality tiers

Excellent

13 (21.0%)

Very Good

16 (25.8%)

Good

24 (38.7%)

Average

9 (14.5%)

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J VS1J colour is visually identical to I to the naked eye

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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