How much does a 1.50 to 1.99ct E IF natural radiant diamond cost?

As of October 2026, 1.50 to 1.99ct E IF natural radiant diamonds typically cost $23,235 NZD to $42,519 NZD, with a median price of $31,712 NZD. There are currently 1 diamonds matching this specification available across retailers.

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

About 24% of these diamonds are available at multiple retailers, with an average price spread of 33%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.50 to 1.99ct E IF Natural Radiant

Quick answer

As of October 2026, there are 1 natural radiant diamonds with E colour and IF clarity in the 1.50 to 1.99ct range available across retailers worldwide. Prices typically run $23,235 NZD to $42,519 NZD, with a median of $31,712 NZD. At least 26 retailers stock this exact specification, and 24% of the stones appear at more than one of them, with an average price spread of 33%. Half of all listings fall between $15,537 NZD and $21,658 NZD per carat. The same specification in lab grown form lists at a median of about $1,078 NZD per carat. Over the last 30 days the median price moved +2.1% and the number of listings moved -21.0%.

Three of the best scored stones at this specification right now:

1.51ct Radiant E IF, GIA, grade A, from $20,725 NZD

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

Lowest Price

$20,725 NZD

Highest Price

$45,020 NZD

Average Price

$32,488 NZD