How much does a 1.50 to 1.99ct D IF natural marquise diamond cost?

As of November 2026, 1.50 to 1.99ct D IF natural marquise diamonds typically cost $22,340 AUD to $47,615 AUD, with a median price of $29,397 AUD. There are currently 27 diamonds matching this specification available across retailers.

Where can I find the best price on a D IF marquise diamond?

About 39% of these diamonds are available at multiple retailers, with an average price spread of 29%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.50 to 1.99ct D IF Natural Marquise

Quick answer

As of November 2026, there are 27 natural marquise diamonds with D colour and IF clarity in the 1.50 to 1.99ct range available across retailers worldwide. Prices typically run $22,340 AUD to $47,615 AUD, with a median of $29,397 AUD. At least 55 retailers stock this exact specification, and 39% of the stones appear at more than one of them, with an average price spread of 29%. Half of all listings fall between $16,558 AUD and $22,035 AUD per carat. The same specification in lab grown form lists at a median of about $1,424 AUD per carat. Over the last 30 days the median price moved -1.0% and the number of listings moved +18.9%.

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. Marquise natural stones in the index: 2,268 USD per carat, +10.8% 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

$20,573 AUD

Highest Price

$65,772 AUD

Average Price

$32,080 AUD

Market Intelligence

Retailers Selling

Cross Retailer %

39.0%

Price Spread

29.5%

30-Day Price Trend

-1.0%

30-Day Supply Change

+18.9%

Volatility (30d)

0.00

Price Range

Price per carat distribution across retailers

$13,060/ct

10th Percentile

$10,689

Median

$13,060

90th Percentile

$17,769

Score Distribution

72 diamonds scored across 5 quality tiers

Exceptional

3 (4.2%)

Excellent

16 (22.2%)

Very Good

19 (26.4%)

Good

19 (26.4%)

Average

15 (20.8%)

Find Your Diamond

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Lab-Grown D IFSame specifications, lab-grown origin

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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