How much does a 1.00 to 1.49ct J VS1 lab grown radiant diamond cost?

As of October 2026, 1.00 to 1.49ct J VS1 lab grown radiant diamonds typically cost €173 EUR to €1,013 EUR, with a median price of €705 EUR. There are currently 5 diamonds matching this specification available across retailers.

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

About 36% of these diamonds are available at multiple retailers, with an average price spread of 123%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.00 to 1.49ct J VS1 Lab Grown Radiant

Quick answer

As of October 2026, there are 5 lab grown radiant diamonds with J colour and VS1 clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run €173 EUR to €1,013 EUR, with a median of €705 EUR. At least 20 retailers stock this exact specification, and 36% of the stones appear at more than one of them, with an average price spread of 123%. Half of all listings fall between €298 EUR and €1,087 EUR per carat. The same specification in natural form lists at a median of about €2,570 EUR per carat. Over the last 30 days the median price moved -6.3% and the number of listings moved +30.1%.

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. 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

€168 EUR

Highest Price

€3,742 EUR

Average Price

€719 EUR

Market Intelligence

Retailers Selling

Cross Retailer %

35.7%

Price Spread

123.0%

30-Day Price Trend

-6.3%

30-Day Supply Change

+30.1%

Volatility (30d)

0.03

Price Range

Price per carat distribution across retailers

$715/ct

10th Percentile

$193

Median

$715

90th Percentile

$1,947

Score Distribution

10 diamonds scored across 3 quality tiers

Excellent

5 (50.0%)

Very Good

1 (10.0%)

Average

4 (40.0%)

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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