How much does a 0.75 to 0.99ct G SI2 natural round diamond cost?

As of November 2026, 0.75 to 0.99ct G SI2 natural round diamonds typically cost €922 EUR to €2,645 EUR, with a median price of €1,505 EUR. There are currently 2,278 diamonds matching this specification available across retailers.

Where can I find the best price on a G SI2 round diamond?

About 35% of these diamonds are available at multiple retailers, with an average price spread of 55%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.75 to 0.99ct G SI2 Natural Round

Quick answer

As of November 2026, there are 2,278 natural round diamonds with G color and SI2 clarity in the 0.75 to 0.99ct range available across retailers worldwide. Prices typically run €922 EUR to €2,645 EUR, with a median of €1,505 EUR. At least 60 retailers stock this exact specification, and 35% of the stones appear at more than one of them, with an average price spread of 55%. Half of all listings fall between €1,388 EUR and €2,356 EUR per carat. The same specification in lab grown form lists at a median of about €612 EUR per carat. Over the last 30 days the median price moved -1.5% and the number of listings moved +9.7%.

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 natural stones in the index: 2,248 USD per carat, +7.6% 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

2,278

Lowest Price

€439 EUR

Highest Price

€5,630 EUR

Average Price

€1,662 EUR