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

As of October 2026, 1.00 to 1.49ct J FL natural round diamonds typically cost $4,482 AUD to $7,525 AUD, with a median price of $5,605 AUD. There are currently 7 diamonds matching this specification available across retailers.

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

About 13% 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.

1.00 to 1.49ct J FL Natural Round

Quick answer

As of October 2026, there are 7 natural round diamonds with J colour and FL clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run $4,482 AUD to $7,525 AUD, with a median of $5,605 AUD. At least 27 retailers stock this exact specification, and 13% of the stones appear at more than one of them, with an average price spread of 30%. Half of all listings fall between $4,184 AUD and $5,643 AUD per carat. Over the last 30 days the median price moved -0.7% and the number of listings moved +8.5%.

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. Round natural stones in the index: 2,248 USD per carat, +7.6% 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

$3,827 AUD

Highest Price

$14,485 AUD

Average Price

$5,738 AUD

Market Intelligence

Retailers Selling

Cross Retailer %

12.7%

Price Spread

30.2%

30-Day Price Trend

-0.7%

30-Day Supply Change

+8.5%

Volatility (30d)

0.00

Price Range

Price per carat distribution across retailers

$3,394/ct

10th Percentile

$2,616

Median

$3,394

90th Percentile

$5,192

Score Distribution

35 diamonds scored across 4 quality tiers

Excellent

2 (5.7%)

Very Good

7 (20.0%)

Good

24 (68.6%)

Average

2 (5.7%)

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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