How much does a 2.00 to 2.99ct I SI2 natural princess diamond cost?

As of September 2026, 2.00 to 2.99ct I SI2 natural princess diamonds typically cost $5,256 USD to $16,008 USD, with a median price of $9,600 USD. There are currently 274 diamonds matching this specification available across retailers.

Where can I find the best price on a I SI2 princess diamond?

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2.00 to 2.99ct I SI2 Natural Princess

Quick answer

As of September 2026, there are 274 natural princess diamonds with I color and SI2 clarity in the 2.00 to 2.99ct range available across retailers worldwide. Prices typically run $5,256 USD to $16,008 USD, with a median of $9,600 USD. At least 44 retailers stock this exact specification. Half of all listings fall between $3,772 USD and $5,957 USD per carat. The same specification in lab grown form lists at a median of about $2,492 USD per carat.

Three of the best scored stones at this specification right now:

Caratlytics Diamond Price Index, August 2026: natural diamonds at 2,184 USD per carat and lab-grown at 464 USD per carat, a natural to lab ratio of 4.7 to 1. Princess natural stones in the index: 2,073 USD per carat, -3.2% month on month. See the full index release

Figures come from live listings across more than 100 retailers and refresh daily. The index is a monthly release.

Last updated: September 2026

Available

274

Lowest Price

$3,827 USD

Highest Price

$34,377 USD

Average Price

$10,440 USD

Market Intelligence

Retailers Selling

Price Spread

46.0%

Price Range

Price per carat distribution across retailers

$4,746/ct

10th Percentile

$2,905

Median

$4,746

90th Percentile

$7,172

Score Distribution

274 diamonds scored across 4 quality tiers

Excellent

39 (14.2%)

Very Good

97 (35.4%)

Good

64 (23.4%)

Average

74 (27.0%)

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Consider Instead

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

J SI2J colour is visually identical to I to the naked eye

Save 28%

Lab-Grown I SI2Same specifications, lab-grown origin

Save 57%

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