How much does a 1.00 to 1.49ct I VS1 lab grown cushion diamond cost?

As of October 2026, 1.00 to 1.49ct I VS1 lab grown cushion diamonds typically cost $326 CAD to $2,015 CAD, with a median price of $1,134 CAD. There are currently 12 diamonds matching this specification available across retailers.

Where can I find the best price on a I VS1 cushion diamond?

About 16% of these diamonds are available at multiple retailers, with an average price spread of 67%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.00 to 1.49ct I VS1 Lab Grown Cushion

Quick answer

As of October 2026, there are 12 lab grown cushion diamonds with I color and VS1 clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run $326 CAD to $2,015 CAD, with a median of $1,134 CAD. At least 37 retailers stock this exact specification, and 16% of the stones appear at more than one of them, with an average price spread of 67%. Half of all listings fall between $533 CAD and $1,005 CAD per carat. The same specification in natural form lists at a median of about $4,241 CAD per carat. Over the last 30 days the median price moved +4.8% and the number of listings moved -1.0%.

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

Lowest Price

$234 CAD

Highest Price

$2,798 CAD

Average Price

$1,097 CAD

Market Intelligence

Retailers Selling

Cross Retailer %

16.3%

Price Spread

66.6%

30-Day Price Trend

+4.8%

30-Day Supply Change

-1.0%

Volatility (30d)

0.02

Price Range

Price per carat distribution across retailers

$506/ct

10th Percentile

$283

Median

$506

90th Percentile

$921

Score Distribution

23 diamonds scored across 4 quality tiers

Excellent

6 (26.1%)

Very Good

4 (17.4%)

Good

3 (13.0%)

Average

10 (43.5%)

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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