How much does a 3.00 to 4.99ct E IF lab grown cushion diamond cost?

As of September 2026, 3.00 to 4.99ct E IF lab grown cushion diamonds typically cost $2,550 CAD to $16,666 CAD, with a median price of $7,393 CAD. There are currently 464 diamonds matching this specification available across retailers.

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

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3.00 to 4.99ct E IF Lab Grown Cushion

Quick answer

As of September 2026, there are 464 lab grown cushion diamonds with E color and IF clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run $2,550 CAD to $16,666 CAD, with a median of $7,393 CAD. At least 41 retailers stock this exact specification. Half of all listings fall between $1,282 CAD and $3,960 CAD per carat. The same specification in natural form lists at a median of about $55,787 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 lab grown stones in the index: 466 USD per carat, -14.7% 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

464

Lowest Price

$970 CAD

Highest Price

$76,812 CAD

Average Price

$9,269 CAD

Market Intelligence

Retailers Selling

Price Spread

130.1%

Price Range

Price per carat distribution across retailers

$1,486/ct

10th Percentile

$705

Median

$1,486

90th Percentile

$3,505

Score Distribution

464 diamonds scored across 4 quality tiers

Excellent

123 (26.5%)

Very Good

156 (33.6%)

Good

82 (17.7%)

Average

103 (22.2%)

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Consider Instead

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

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

Save 28%

E VVS1VVS1 inclusions are not visible without magnification

Save 47%

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