How much does a 1.00 to 1.49ct J IF natural radiant diamond cost?

As of November 2026, 1.00 to 1.49ct J IF natural radiant diamonds typically cost $2,704 NZD to $6,662 NZD, with a median price of $3,975 NZD. There are currently 28 diamonds matching this specification available across retailers.

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

About 41% of these diamonds are available at multiple retailers, with an average price spread of 78%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.00 to 1.49ct J IF Natural Radiant

Quick answer

As of November 2026, there are 28 natural radiant diamonds with J colour and IF clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run $2,704 NZD to $6,662 NZD, with a median of $3,975 NZD. At least 45 retailers stock this exact specification, and 41% of the stones appear at more than one of them, with an average price spread of 78%. Half of all listings fall between $2,769 NZD and $5,572 NZD per carat. Over the last 30 days the median price moved +0.1% and the number of listings moved +7.4%.

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: November 2026

Available

Lowest Price

$1,795 NZD

Highest Price

$13,948 NZD

Average Price

$4,509 NZD

Market Intelligence

Retailers Selling

Cross Retailer %

40.7%

Price Spread

78.4%

30-Day Price Trend

+0.1%

30-Day Supply Change

+7.4%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$2,014/ct

10th Percentile

$1,275

Median

$2,014

90th Percentile

$4,217

Score Distribution

75 diamonds scored across 4 quality tiers

Excellent

11 (14.7%)

Very Good

19 (25.3%)

Good

25 (33.3%)

Average

20 (26.7%)

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Related Specifications

D IF D VVS1 D VVS2 D VS1 D VS2 D SI1 E IF E VVS1 E VVS2 E VS1 E VS2 E SI1 F IF F VVS1 F VVS2 F VS1 F VS2 F SI1 G IF G VVS1 G VVS2 G VS1 G VS2 G SI1 H IF H VVS1 H VVS2 H VS1 H VS2 H SI1 I IF I VVS1 I VVS2 I VS1 I VS2 I SI1