How much does a 1.00 to 1.49ct E SI2 natural princess diamond cost?

As of September 2026, 1.00 to 1.49ct E SI2 natural princess diamonds typically cost $1,387 USD to $4,080 USD, with a median price of $2,175 USD. There are currently 663 diamonds matching this specification available across retailers.

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

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1.00 to 1.49ct E SI2 Natural Princess

Quick answer

As of September 2026, there are 663 natural princess diamonds with E color and SI2 clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run $1,387 USD to $4,080 USD, with a median of $2,175 USD. At least 49 retailers stock this exact specification. Half of all listings fall between $1,773 USD and $3,052 USD per carat. The same specification in lab grown form lists at a median of about $466 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

663

Lowest Price

$402 USD

Highest Price

$16,454 USD

Average Price

$2,583 USD

Market Intelligence

Retailers Selling

Price Spread

59.2%

Price Range

Price per carat distribution across retailers

$2,160/ct

10th Percentile

$1,519

Median

$2,160

90th Percentile

$4,065

Score Distribution

663 diamonds scored across 4 quality tiers

Excellent

130 (19.6%)

Very Good

177 (26.7%)

Good

204 (30.8%)

Average

152 (22.9%)

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Consider Instead

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

F SI2F colour is visually identical to E to the naked eye

Save 5%

Lab-Grown E SI2Same specifications, lab-grown origin

Save 78%

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