How much does a 1.50 to 1.99ct G IF natural princess diamond cost?

As of October 2026, 1.50 to 1.99ct G IF natural princess diamonds typically cost $8,745 AUD to $20,385 AUD, with a median price of $11,676 AUD. There are currently 16 diamonds matching this specification available across retailers.

Where can I find the best price on a G IF princess diamond?

About 33% of these diamonds are available at multiple retailers, with an average price spread of 32%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.50 to 1.99ct G IF Natural Princess

Quick answer

As of October 2026, there are 16 natural princess diamonds with G colour and IF clarity in the 1.50 to 1.99ct range available across retailers worldwide. Prices typically run $8,745 AUD to $20,385 AUD, with a median of $11,676 AUD. At least 39 retailers stock this exact specification, and 33% of the stones appear at more than one of them, with an average price spread of 32%. Half of all listings fall between $6,356 AUD and $8,758 AUD per carat. The same specification in lab grown form lists at a median of about $1,368 AUD per carat. Over the last 30 days the median price moved -6.8% and the number of listings moved -13.6%.

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. Princess natural stones in the index: 2,158 USD per carat, +5.7% 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

$6,697 AUD

Highest Price

$24,763 AUD

Average Price

$13,559 AUD

Market Intelligence

Retailers Selling

Cross Retailer %

32.9%

Price Spread

32.0%

30-Day Price Trend

-6.8%

30-Day Supply Change

-13.6%

Volatility (30d)

0.02

Price Range

Price per carat distribution across retailers

$5,281/ct

10th Percentile

$3,992

Median

$5,281

90th Percentile

$8,098

Score Distribution

55 diamonds scored across 5 quality tiers

Exceptional

1 (1.8%)

Excellent

16 (29.1%)

Very Good

8 (14.5%)

Good

14 (25.5%)

Average

16 (29.1%)

Find Your Diamond

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Consider Instead

Save money without compromising on what matters. These alternatives are visually similar but cost less.

H IFH colour is visually identical to G to the naked eye

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Lab-Grown G 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