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

As of October 2026, 2.00 to 2.99ct I SI2 natural radiant diamonds typically cost $8,602 SGD to $30,386 SGD, with a median price of $14,498 SGD. There are currently 130 diamonds matching this specification available across retailers.

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

About 34% of these diamonds are available at multiple retailers, with an average price spread of 40%. A comparison tool like Carat Hunter lets you see all the prices side by side.

2.00 to 2.99ct I SI2 Natural Radiant

Quick answer

As of October 2026, there are 130 natural radiant diamonds with I colour and SI2 clarity in the 2.00 to 2.99ct range available across retailers worldwide. Prices typically run $8,602 SGD to $30,386 SGD, with a median of $14,498 SGD. At least 52 retailers stock this exact specification, and 34% of the stones appear at more than one of them, with an average price spread of 40%. Half of all listings fall between $5,593 SGD and $8,346 SGD per carat. The same specification in lab grown form lists at a median of about $506 SGD per carat. Over the last 30 days the median price moved +0.0% and the number of listings moved +17.8%.

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. Radiant natural stones in the index: 3,091 USD per carat, +13.2% 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

130

Lowest Price

$5,234 SGD

Highest Price

$45,473 SGD

Average Price

$17,828 SGD