How much does a 0.75 to 0.99ct F SI1 lab grown round diamond cost?

As of November 2026, 0.75 to 0.99ct F SI1 lab grown round diamonds typically cost €215 EUR to €1,648 EUR, with a median price of €537 EUR. There are currently 25 diamonds matching this specification available across retailers.

Where can I find the best price on a F SI1 round diamond?

About 18% of these diamonds are available at multiple retailers, with an average price spread of 133%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.75 to 0.99ct F SI1 Lab Grown Round

Quick answer

As of November 2026, there are 25 lab grown round diamonds with F color and SI1 clarity in the 0.75 to 0.99ct range available across retailers worldwide. Prices typically run €215 EUR to €1,648 EUR, with a median of €537 EUR. At least 31 retailers stock this exact specification, and 18% of the stones appear at more than one of them, with an average price spread of 133%. Half of all listings fall between €272 EUR and €880 EUR per carat. The same specification in natural form lists at a median of about €2,155 EUR per carat. Over the last 30 days the median price moved -32.6% and the number of listings moved -22.8%.

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. 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

€110 EUR

Highest Price

€3,752 EUR

Average Price

€826 EUR

Market Intelligence

Retailers Selling

Cross Retailer %

17.8%

Price Spread

132.6%

30-Day Price Trend

-32.6%

30-Day Supply Change

-22.8%

Volatility (30d)

0.02

Price Range

Price per carat distribution across retailers

$512/ct

10th Percentile

$182

Median

$512

90th Percentile

$2,840

Score Distribution

91 diamonds scored across 4 quality tiers

Excellent

8 (8.8%)

Very Good

17 (18.7%)

Good

24 (26.4%)

Average

42 (46.2%)

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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