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

As of October 2026, 5.00ct+ I VS1 lab grown oval diamonds typically cost €1,056 EUR to €5,921 EUR, with a median price of €2,935 EUR. There are currently 44 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 95%. 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 October 2026, there are 44 lab grown oval diamonds with I colour and VS1 clarity in the 5.00ct+ range available across retailers worldwide. Prices typically run €1,056 EUR to €5,921 EUR, with a median of €2,935 EUR. At least 33 retailers stock this exact specification, and 42% of the stones appear at more than one of them, with an average price spread of 95%. Half of all listings fall between €207 EUR and €511 EUR per carat. The same specification in natural form lists at a median of about €21,817 EUR per carat. Over the last 30 days the median price moved -12.0% and the number of listings moved +15.6%.

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: October 2026

Available

Lowest Price

€483 EUR

Highest Price

€45,687 EUR

Average Price

€4,490 EUR

Market Intelligence

Retailers Selling

Cross Retailer %

41.5%

Price Spread

95.2%

30-Day Price Trend

-12.0%

30-Day Supply Change

+15.6%

Volatility (30d)

0.05

Price Range

Price per carat distribution across retailers

$356/ct

10th Percentile

$162

Median

$356

90th Percentile

$905

Score Distribution

84 diamonds scored across 4 quality tiers

Excellent

16 (19.0%)

Very Good

14 (16.7%)

Good

28 (33.3%)

Average

26 (31.0%)

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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