How much does a 1.50 to 1.99ct D FL natural round diamond cost?

As of November 2026, 1.50 to 1.99ct D FL natural round diamonds typically cost $27,308 AUD to $59,879 AUD, with a median price of $36,517 AUD. There are currently 105 diamonds matching this specification available across retailers.

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

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

1.50 to 1.99ct D FL Natural Round

Quick answer

As of November 2026, there are 105 natural round diamonds with D colour and FL clarity in the 1.50 to 1.99ct range available across retailers worldwide. Prices typically run $27,308 AUD to $59,879 AUD, with a median of $36,517 AUD. At least 49 retailers stock this exact specification, and 33% of the stones appear at more than one of them, with an average price spread of 24%. Half of all listings fall between $20,913 AUD and $26,634 AUD per carat. The same specification in lab grown form lists at a median of about $1,151 AUD per carat. Over the last 30 days the median price moved -1.3% and the number of listings moved +15.4%.

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. 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: November 2026

Available

105

Lowest Price

$18,635 AUD

Highest Price

$87,546 AUD

Average Price

$39,488 AUD

Market Intelligence

Retailers Selling

Cross Retailer %

33.2%

Price Spread

24.3%

30-Day Price Trend

-1.3%

30-Day Supply Change

+15.4%

Volatility (30d)

0.00

Price Range

Price per carat distribution across retailers

$16,545/ct

10th Percentile

$13,245

Median

$16,545

90th Percentile

$21,578

Score Distribution

195 diamonds scored across 4 quality tiers

Excellent

65 (33.3%)

Very Good

53 (27.2%)

Good

56 (28.7%)

Average

21 (10.8%)

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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