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

As of October 2026, 1.00 to 1.49ct J FL natural radiant diamonds typically cost $3,586 NZD to $5,514 NZD, with a median price of $4,138 NZD. There are currently 1 diamonds matching this specification available across retailers.

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

About 12% of these diamonds are available at multiple retailers, with an average price spread of 27%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.00 to 1.49ct J FL Natural Radiant

Quick answer

As of October 2026, there are 1 natural radiant diamonds with J colour and FL clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run $3,586 NZD to $5,514 NZD, with a median of $4,138 NZD. At least 16 retailers stock this exact specification, and 12% of the stones appear at more than one of them, with an average price spread of 27%. Half of all listings fall between $3,274 NZD and $4,244 NZD per carat. Over the last 30 days the median price moved -3.0% and the number of listings moved +14.7%.

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

1.00ct Radiant J FL, GIA, grade B, from $5,534 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

$3,550 NZD

Highest Price

$8,660 NZD

Average Price

$4,371 NZD

Market Intelligence

Retailers Selling

Cross Retailer %

11.8%

Price Spread

26.8%

30-Day Price Trend

-3.0%

30-Day Supply Change

+14.7%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$2,031/ct

10th Percentile

$1,520

Median

$2,031

90th Percentile

$2,763

Score Distribution

8 diamonds scored across 3 quality tiers

Very Good

1 (12.5%)

Good

5 (62.5%)

Average

2 (25.0%)

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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