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

As of October 2026, 1.00 to 1.49ct E IF lab grown cushion diamonds typically cost $429 CAD to $2,751 CAD, with a median price of $817 CAD. There are currently 138 diamonds matching this specification available across retailers.

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

About 38% of these diamonds are available at multiple retailers, with an average price spread of 103%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.00 to 1.49ct E IF Lab Grown Cushion

Quick answer

As of October 2026, there are 138 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 $429 CAD to $2,751 CAD, with a median of $817 CAD. At least 51 retailers stock this exact specification, and 38% of the stones appear at more than one of them, with an average price spread of 103%. Half of all listings fall between $742 CAD and $1,943 CAD per carat. The same specification in natural form lists at a median of about $10,073 CAD per carat. Over the last 30 days the median price moved -9.3% and the number of listings moved +39.7%.

Three of the best scored stones at this specification right now:

Caratlytics Diamond Price Index, September 2026: natural diamonds at 2,335 USD per carat and lab-grown at 443 USD per carat, a natural to lab ratio of 5.3 to 1. Cushion lab grown stones in the index: 516 USD per carat, +6.9% month on month. See the full index release

Figures come from current listings across more than 100 retailers and refresh daily. The index is a monthly release.

Last updated: October 2026

Available

138

Lowest Price

$328 CAD

Highest Price

$7,545 CAD

Average Price

$1,225 CAD

Market Intelligence

Retailers Selling

Cross Retailer %

37.6%

Price Spread

103.5%

30-Day Price Trend

-9.3%

30-Day Supply Change

+39.7%

Volatility (30d)

0.03

Price Range

Price per carat distribution across retailers

$830/ct

10th Percentile

$414

Median

$830

90th Percentile

$1,949

Score Distribution

411 diamonds scored across 5 quality tiers

Exceptional

4 (1.0%)

Excellent

138 (33.6%)

Very Good

116 (28.2%)

Good

82 (20.0%)

Average

71 (17.3%)

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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