How much does a 2.00 to 2.99ct E SI2 natural round diamond cost?

As of September 2026, 2.00 to 2.99ct E SI2 natural round diamonds typically cost £6,340 GBP to £17,848 GBP, with a median price of £9,986 GBP. There are currently 1,217 diamonds matching this specification available across retailers.

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

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2.00 to 2.99ct E SI2 Natural Round

Quick answer

As of September 2026, there are 1,217 natural round diamonds with E colour and SI2 clarity in the 2.00 to 2.99ct range available across retailers worldwide. Prices typically run £6,340 GBP to £17,848 GBP, with a median of £9,986 GBP. At least 51 retailers stock this exact specification. Half of all listings fall between £4,225 GBP and £6,689 GBP per carat. The same specification in lab grown form lists at a median of about £611 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. Round natural stones in the index: 2,094 USD per carat, -3.8% 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

1,217

Lowest Price

£3,866 GBP

Highest Price

£38,720 GBP

Average Price

£11,178 GBP