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

As of September 2026, 1.00 to 1.49ct E SI2 natural cushion diamonds typically cost $1,356 USD to $4,940 USD, with a median price of $2,507 USD. There are currently 692 diamonds matching this specification available across retailers.

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

Compare prices across retailers on Carat Hunter to see all your options.

1.00 to 1.49ct E SI2 Natural Cushion

Quick answer

As of September 2026, there are 692 natural cushion diamonds with E color and SI2 clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run $1,356 USD to $4,940 USD, with a median of $2,507 USD. At least 47 retailers stock this exact specification. Half of all listings fall between $1,834 USD and $3,282 USD per carat. The same specification in lab grown form lists at a median of about $526 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. Cushion natural stones in the index: 2,792 USD per carat, +1.1% 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

692

Lowest Price

$830 USD

Highest Price

$10,067 USD

Average Price

$2,897 USD

Market Intelligence

Retailers Selling

Price Spread

59.7%

Price Range

Price per carat distribution across retailers

$2,425/ct

10th Percentile

$1,504

Median

$2,425

90th Percentile

$4,276

Score Distribution

692 diamonds scored across 4 quality tiers

Excellent

107 (15.5%)

Very Good

165 (23.8%)

Good

215 (31.1%)

Average

205 (29.6%)

Find Your Diamond

Search 692 E SI2 cushion diamonds and compare prices.

Search Diamonds

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 9%

Lab-Grown E SI2Same specifications, lab-grown origin

Save 73%

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