How much does a 2.00 to 2.99ct H SI1 natural princess diamond cost?

As of October 2026, 2.00 to 2.99ct H SI1 natural princess diamonds typically cost £6,567 GBP to £20,387 GBP, with a median price of £10,956 GBP. There are currently 107 diamonds matching this specification available across retailers.

Where can I find the best price on a H SI1 princess diamond?

About 30% of these diamonds are available at multiple retailers, with an average price spread of 45%. A comparison tool like Carat Hunter lets you see all the prices side by side.

2.00 to 2.99ct H SI1 Natural Princess

Quick answer

As of October 2026, there are 107 natural princess diamonds with H colour and SI1 clarity in the 2.00 to 2.99ct range available across retailers worldwide. Prices typically run £6,567 GBP to £20,387 GBP, with a median of £10,956 GBP. At least 58 retailers stock this exact specification, and 30% of the stones appear at more than one of them, with an average price spread of 45%. Half of all listings fall between £3,353 GBP and £5,235 GBP per carat. The same specification in lab grown form lists at a median of about £736 GBP per carat. Over the last 30 days the median price moved -2.3% and the number of listings moved +9.4%.

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

107

Lowest Price

£3,848 GBP

Highest Price

£31,231 GBP

Average Price

£12,334 GBP

Market Intelligence

Retailers Selling

Cross Retailer %

30.3%

Price Spread

45.5%

30-Day Price Trend

-2.3%

30-Day Supply Change

+9.4%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$5,548/ct

10th Percentile

$3,733

Median

$5,548

90th Percentile

$8,619

Score Distribution

354 diamonds scored across 4 quality tiers

Excellent

25 (7.1%)

Very Good

67 (18.9%)

Good

55 (15.5%)

Average

207 (58.5%)

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Consider Instead

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

H SI2SI2 inclusions are not visible without magnification

Save 15%

Lab-Grown H SI1Same specifications, lab-grown origin

Save 75%

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