How much does a 5.00ct+ G I1 natural princess diamond cost?

As of October 2026, 5.00ct+ G I1 natural princess diamonds typically cost $14,897 USD to $50,431 USD, with a median price of $17,981 USD. There are currently 2 diamonds matching this specification available across retailers.

Where can I find the best price on a G I1 princess diamond?

About 50% of these diamonds are available at multiple retailers, with an average price spread of 15%. A comparison tool like Carat Hunter lets you see all the prices side by side.

5.00ct+ G I1 Natural Princess

Quick answer

As of October 2026, there are 2 natural princess diamonds with G color and I1 clarity in the 5.00ct+ range available across retailers worldwide. Prices typically run $14,897 USD to $50,431 USD, with a median of $17,981 USD. At least 11 retailers stock this exact specification, and 50% of the stones appear at more than one of them, with an average price spread of 15%. Half of all listings fall between $3,003 USD and $3,496 USD per carat.

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

$14,126 USD

Highest Price

$70,518 USD

Average Price

$30,217 USD

Market Intelligence

Retailers Selling

Cross Retailer %

50.0%

Price Spread

15.1%

Price Range

Price per carat distribution across retailers

$3,271/ct

10th Percentile

$2,839

Median

$3,271

90th Percentile

$3,589

Score Distribution

3 diamonds scored across 2 quality tiers

Very Good

2 (66.7%)

Average

1 (33.3%)

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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