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

As of October 2026, 2.00 to 2.99ct G SI2 natural round diamonds typically cost $7,272 USD to $24,940 USD, with a median price of $13,193 USD. There are currently 1,146 diamonds matching this specification available across retailers.

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

About 39% of these diamonds are available at multiple retailers, with an average price spread of 49%. A comparison tool like Carat Hunter lets you see all the prices side by side.

2.00 to 2.99ct G SI2 Natural Round

Quick answer

As of October 2026, there are 1,146 natural round diamonds with G color and SI2 clarity in the 2.00 to 2.99ct range available across retailers worldwide. Prices typically run $7,272 USD to $24,940 USD, with a median of $13,193 USD. At least 58 retailers stock this exact specification, and 39% of the stones appear at more than one of them, with an average price spread of 49%. Half of all listings fall between $4,818 USD and $7,974 USD per carat. The same specification in lab grown form lists at a median of about $361 USD per carat. Over the last 30 days the median price moved -1.9% and the number of listings moved +12.6%.

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

1,146

Lowest Price

$4,237 USD

Highest Price

$53,613 USD

Average Price

$15,079 USD