How much does a 5.00ct+ E SI2 natural cushion diamond cost?

As of September 2026, 5.00ct+ E SI2 natural cushion diamonds typically cost $77,914 CAD to $166,937 CAD, with a median price of $114,126 CAD. There are currently 20 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.

5.00ct+ E SI2 Natural Cushion

Quick answer

As of September 2026, there are 20 natural cushion diamonds with E color and SI2 clarity in the 5.00ct+ range available across retailers worldwide. Prices typically run $77,914 CAD to $166,937 CAD, with a median of $114,126 CAD. At least 14 retailers stock this exact specification. Half of all listings fall between $18,838 CAD and $22,480 CAD per carat. The same specification in lab grown form lists at a median of about $402 CAD 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

Lowest Price

$66,837 CAD

Highest Price

$326,063 CAD

Average Price

$128,208 CAD

Market Intelligence

Retailers Selling

Price Spread

17.7%

Price Range

Price per carat distribution across retailers

$14,886/ct

10th Percentile

$12,525

Median

$14,886

90th Percentile

$17,193

Score Distribution

20 diamonds scored across 4 quality tiers

Excellent

5 (25.0%)

Very Good

10 (50.0%)

Good

3 (15.0%)

Average

2 (10.0%)

Find Your Diamond

Search 20 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.

Lab-Grown E SI2Same specifications, lab-grown origin

Save 98%

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