How much does a 1.00 to 1.49ct E IF lab grown cushion diamond cost?

As of September 2026, 1.00 to 1.49ct E IF lab grown cushion diamonds typically cost $489 CAD to $3,051 CAD, with a median price of $1,145 CAD. There are currently 359 diamonds matching this specification available across retailers.

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1.00 to 1.49ct E IF Lab Grown Cushion

Quick answer

As of September 2026, there are 359 lab grown cushion diamonds with E color and IF clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run $489 CAD to $3,051 CAD, with a median of $1,145 CAD. At least 42 retailers stock this exact specification. Half of all listings fall between $782 CAD and $2,464 CAD per carat. The same specification in natural form lists at a median of about $9,864 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

359

Lowest Price

$251 CAD

Highest Price

$11,308 CAD

Average Price

$1,595 CAD

Market Intelligence

Retailers Selling

Price Spread

139.3%

Price Range

Price per carat distribution across retailers

$871/ct

10th Percentile

$458

Median

$871

90th Percentile

$2,145

Score Distribution

359 diamonds scored across 4 quality tiers

Excellent

116 (32.3%)

Very Good

69 (19.2%)

Good

86 (24.0%)

Average

88 (24.5%)

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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