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 £4,112 GBP to £12,620 GBP, with a median price of £7,559 GBP. There are currently 272 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 272 natural princess diamonds with I colour and SI2 clarity in the 2.00 to 2.99ct range available across retailers worldwide. Prices typically run £4,112 GBP to £12,620 GBP, with a median of £7,559 GBP. At least 44 retailers stock this exact specification. Half of all listings fall between £2,943 GBP and £4,669 GBP per carat. The same specification in lab grown form lists at a median of about £1,962 GBP 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

272

Lowest Price

£2,983 GBP

Highest Price

£27,069 GBP

Average Price

£8,219 GBP

Market Intelligence

Retailers Selling

Price Spread

46.5%

Price Range

Price per carat distribution across retailers

$4,714/ct

10th Percentile

$2,886

Median

$4,714

90th Percentile

$7,048

Score Distribution

272 diamonds scored across 4 quality tiers

Excellent

39 (14.3%)

Very Good

98 (36.0%)

Good

63 (23.2%)

Average

72 (26.5%)

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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 29%

Lab-Grown I SI2Same specifications, lab-grown origin

Save 56%

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