How much does a 5.00ct+ I VS1 lab grown oval diamond cost?

As of November 2026, 5.00ct+ I VS1 lab grown oval diamonds typically cost €1,047 EUR to €6,043 EUR, with a median price of €3,016 EUR. There are currently 39 diamonds matching this specification available across retailers.

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

About 42% of these diamonds are available at multiple retailers, with an average price spread of 84%. A comparison tool like Carat Hunter lets you see all the prices side by side.

5.00ct+ I VS1 Lab Grown Oval

Quick answer

As of November 2026, there are 39 lab grown oval diamonds with I color and VS1 clarity in the 5.00ct+ range available across retailers worldwide. Prices typically run €1,047 EUR to €6,043 EUR, with a median of €3,016 EUR. At least 32 retailers stock this exact specification, and 42% of the stones appear at more than one of them, with an average price spread of 84%. Half of all listings fall between €266 EUR and €598 EUR per carat. The same specification in natural form lists at a median of about €21,401 EUR per carat. Over the last 30 days the median price moved -11.1% and the number of listings moved +14.6%.

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. Oval lab grown stones in the index: 453 USD per carat, -7.4% 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

€482 EUR

Highest Price

€45,515 EUR

Average Price

€4,553 EUR

Market Intelligence

Retailers Selling

Cross Retailer %

42.1%

Price Spread

84.5%

30-Day Price Trend

-11.1%

30-Day Supply Change

+14.6%

Volatility (30d)

0.04

Price Range

Price per carat distribution across retailers

$438/ct

10th Percentile

$242

Median

$438

90th Percentile

$1,146

Score Distribution

68 diamonds scored across 4 quality tiers

Excellent

13 (19.1%)

Very Good

10 (14.7%)

Good

24 (35.3%)

Average

21 (30.9%)

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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