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

As of September 2026, 2.00 to 2.99ct I SI2 natural radiant diamonds typically cost HK$52,790 HKD to HK$152,916 HKD, with a median price of HK$83,379 HKD. There are currently 328 diamonds matching this specification available across retailers.

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

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

2.00 to 2.99ct I SI2 Natural Radiant

Quick answer

As of September 2026, there are 328 natural radiant diamonds with I colour and SI2 clarity in the 2.00 to 2.99ct range available across retailers worldwide. Prices typically run HK$52,790 HKD to HK$152,916 HKD, with a median of HK$83,379 HKD. At least 45 retailers stock this exact specification. Half of all listings fall between HK$35,007 HKD and HK$51,771 HKD per carat. The same specification in lab grown form lists at a median of about HK$46,330 HKD 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

328

Lowest Price

HK$28,563 HKD

Highest Price

HK$279,029 HKD

Average Price

HK$94,402 HKD