How much does a 0.75 to 0.99ct J I1 lab grown oval diamond cost?

As of November 2026, 0.75 to 0.99ct J I1 lab grown oval diamonds typically cost €241 EUR to €241 EUR, with a median price of €241 EUR. There are currently 1 diamonds matching this specification available across retailers.

Where can I find the best price on a J I1 oval diamond?

About 80% of these diamonds are available at multiple retailers, with an average price spread of 174%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.75 to 0.99ct J I1 Lab Grown Oval

Quick answer

As of November 2026, there are 1 lab grown oval diamonds with J color and I1 clarity in the 0.75 to 0.99ct range available across retailers worldwide. Prices typically run €241 EUR to €241 EUR, with a median of €241 EUR. At least 8 retailers stock this exact specification, and 80% of the stones appear at more than one of them, with an average price spread of 174%. Half of all listings fall between €287 EUR and €1,021 EUR per carat. The same specification in natural form lists at a median of about €1,170 EUR per carat.

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

0.94ct Oval J I1, UNKNOWN, grade B+, from €241 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. 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

€241 EUR

Highest Price

€961 EUR

Average Price

€241 EUR

Market Intelligence

Retailers Selling

Cross Retailer %

80.0%

Price Spread

173.6%

Price Range

Price per carat distribution across retailers

$472/ct

10th Percentile

$289

Median

$472

90th Percentile

$1,281

Score Distribution

1 diamonds scored across 1 quality tiers

Very Good

1 (100.0%)

Find Your Diamond

Search 1 J I1 oval 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