How much does a 1.50 to 1.99ct I VS1 lab grown radiant diamond cost?

As of October 2026, 1.50 to 1.99ct I VS1 lab grown radiant diamonds typically cost €262 EUR to €1,842 EUR, with a median price of €593 EUR. There are currently 32 diamonds matching this specification available across retailers.

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

About 25% of these diamonds are available at multiple retailers, with an average price spread of 91%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.50 to 1.99ct I VS1 Lab Grown Radiant

Quick answer

As of October 2026, there are 32 lab grown radiant diamonds with I colour and VS1 clarity in the 1.50 to 1.99ct range available across retailers worldwide. Prices typically run €262 EUR to €1,842 EUR, with a median of €593 EUR. At least 44 retailers stock this exact specification, and 25% of the stones appear at more than one of them, with an average price spread of 91%. Half of all listings fall between €257 EUR and €637 EUR per carat. The same specification in natural form lists at a median of about €5,333 EUR per carat. Over the last 30 days the median price moved +6.8% and the number of listings moved +15.0%.

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: October 2026

Available

Lowest Price

€165 EUR

Highest Price

€3,601 EUR

Average Price

€836 EUR

Market Intelligence

Retailers Selling

Cross Retailer %

25.2%

Price Spread

90.8%

30-Day Price Trend

+6.8%

30-Day Supply Change

+15.0%

Volatility (30d)

0.02

Price Range

Price per carat distribution across retailers

$466/ct

10th Percentile

$173

Median

$466

90th Percentile

$1,313

Score Distribution

57 diamonds scored across 4 quality tiers

Excellent

17 (29.8%)

Very Good

15 (26.3%)

Good

10 (17.5%)

Average

15 (26.3%)

Find Your Diamond

Search 32 I VS1 radiant diamonds and compare prices.

Search Diamonds

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