How much does a 3.00 to 4.99ct G IF natural round diamond cost?

As of October 2026, 3.00 to 4.99ct G IF natural round diamonds typically cost £36,357 GBP to £105,213 GBP, with a median price of £65,743 GBP. There are currently 41 diamonds matching this specification available across retailers.

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

About 26% of these diamonds are available at multiple retailers, with an average price spread of 37%. A comparison tool like Carat Hunter lets you see all the prices side by side.

3.00 to 4.99ct G IF Natural Round

Quick answer

As of October 2026, there are 41 natural round diamonds with G colour and IF clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run £36,357 GBP to £105,213 GBP, with a median of £65,743 GBP. At least 54 retailers stock this exact specification, and 26% of the stones appear at more than one of them, with an average price spread of 37%. Half of all listings fall between £16,249 GBP and £23,509 GBP per carat. The same specification in lab grown form lists at a median of about £605 GBP per carat. Over the last 30 days the median price moved -1.4% and the number of listings moved -5.7%.

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: October 2026

Available

Lowest Price

£26,688 GBP

Highest Price

£223,947 GBP

Average Price

£70,822 GBP