How much does a 2.00 to 2.99ct G SI1 natural princess diamond cost?

As of October 2026, 2.00 to 2.99ct G SI1 natural princess diamonds typically cost £8,095 GBP to £25,393 GBP, with a median price of £13,418 GBP. There are currently 75 diamonds matching this specification available across retailers.

Where can I find the best price on a G SI1 princess diamond?

About 33% of these diamonds are available at multiple retailers, with an average price spread of 38%. A comparison tool like Carat Hunter lets you see all the prices side by side.

2.00 to 2.99ct G SI1 Natural Princess

Quick answer

As of October 2026, there are 75 natural princess diamonds with G colour and SI1 clarity in the 2.00 to 2.99ct range available across retailers worldwide. Prices typically run £8,095 GBP to £25,393 GBP, with a median of £13,418 GBP. At least 60 retailers stock this exact specification, and 33% of the stones appear at more than one of them, with an average price spread of 38%. Half of all listings fall between £4,510 GBP and £6,615 GBP per carat. The same specification in lab grown form lists at a median of about £413 GBP per carat. Over the last 30 days the median price moved -2.6% and the number of listings moved +12.9%.

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. Princess natural stones in the index: 2,158 USD per carat, +5.7% 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

£6,267 GBP

Highest Price

£43,483 GBP

Average Price

£14,640 GBP