How much does a 0.50 to 0.74ct J IF lab grown round diamond cost?

As of November 2026, 0.50 to 0.74ct J IF lab grown round diamonds typically cost €434 EUR to €787 EUR, with a median price of €519 EUR. There are currently 1 diamonds matching this specification available across retailers.

Where can I find the best price on a J IF round diamond?

About 9% of these diamonds are available at multiple retailers, with an average price spread of 18%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.50 to 0.74ct J IF Lab Grown Round

Quick answer

As of November 2026, there are 1 lab grown round diamonds with J color and IF clarity in the 0.50 to 0.74ct range available across retailers worldwide. Prices typically run €434 EUR to €787 EUR, with a median of €519 EUR. At least 10 retailers stock this exact specification, and 9% of the stones appear at more than one of them, with an average price spread of 18%. Half of all listings fall between €922 EUR and €1,102 EUR per carat. The same specification in natural form lists at a median of about €1,268 EUR per carat.

Three of the best scored stones at this specification right now:

0.50ct Round J IF, IGI, grade A, from €409 EUR

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. Round lab grown stones in the index: 414 USD per carat, -5.0% 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

€409 EUR

Highest Price

€891 EUR

Average Price

€584 EUR

Market Intelligence

Retailers Selling

Cross Retailer %

9.1%

Price Spread

18.0%

Price Range

Price per carat distribution across retailers

$1,123/ct

10th Percentile

$906

Median

$1,123

90th Percentile

$1,478

Score Distribution

4 diamonds scored across 3 quality tiers

Excellent

1 (25.0%)

Very Good

2 (50.0%)

Good

1 (25.0%)

Find Your Diamond

Search 1 J IF round 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