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

As of October 2026, 2.00 to 2.99ct G SI1 natural radiant diamonds typically cost $22,490 NZD to $62,367 NZD, with a median price of $33,025 NZD. There are currently 127 diamonds matching this specification available across retailers.

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

About 37% of these diamonds are available at multiple retailers, with an average price spread of 30%. A comparison tool like Carat Hunter lets you see all the prices side by side.

2.00 to 2.99ct G SI1 Natural Radiant

Quick answer

As of October 2026, there are 127 natural radiant diamonds with G colour and SI1 clarity in the 2.00 to 2.99ct range available across retailers worldwide. Prices typically run $22,490 NZD to $62,367 NZD, with a median of $33,025 NZD. At least 61 retailers stock this exact specification, and 37% of the stones appear at more than one of them, with an average price spread of 30%. Half of all listings fall between $13,152 NZD and $17,675 NZD per carat. The same specification in lab grown form lists at a median of about $1,002 NZD per carat. Over the last 30 days the median price moved -0.2% and the number of listings moved +18.9%.

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. 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

127

Lowest Price

$12,782 NZD

Highest Price

$85,447 NZD

Average Price

$37,458 NZD