How much does a 2.00 to 2.99ct G SI2 natural radiant diamond cost?

As of September 2026, 2.00 to 2.99ct G SI2 natural radiant diamonds typically cost £5,099 GBP to £15,948 GBP, with a median price of £8,883 GBP. There are currently 255 diamonds matching this specification available across retailers.

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

Compare prices across retailers on Carat Hunter to see all your options.

2.00 to 2.99ct G SI2 Natural Radiant

Quick answer

As of September 2026, there are 255 natural radiant diamonds with G colour and SI2 clarity in the 2.00 to 2.99ct range available across retailers worldwide. Prices typically run £5,099 GBP to £15,948 GBP, with a median of £8,883 GBP. At least 42 retailers stock this exact specification. Half of all listings fall between £3,741 GBP and £5,636 GBP per carat. The same specification in lab grown form lists at a median of about £540 GBP per carat.

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

Caratlytics Diamond Price Index, August 2026: natural diamonds at 2,184 USD per carat and lab-grown at 464 USD per carat, a natural to lab ratio of 4.7 to 1. Radiant natural stones in the index: 2,765 USD per carat, +6.0% month on month. See the full index release

Figures come from live listings across more than 100 retailers and refresh daily. The index is a monthly release.

Last updated: September 2026

Available

255

Lowest Price

£2,816 GBP

Highest Price

£31,159 GBP

Average Price

£9,696 GBP