How much does a 1.50 to 1.99ct I VS1 natural cushion diamond cost?

As of October 2026, 1.50 to 1.99ct I VS1 natural cushion diamonds typically cost $5,165 CAD to $14,130 CAD, with a median price of $8,202 CAD. There are currently 441 diamonds matching this specification available across retailers.

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

About 30% of these diamonds are available at multiple retailers, with an average price spread of 55%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.50 to 1.99ct I VS1 Natural Cushion

Quick answer

As of October 2026, there are 441 natural cushion diamonds with I color and VS1 clarity in the 1.50 to 1.99ct range available across retailers worldwide. Prices typically run $5,165 CAD to $14,130 CAD, with a median of $8,202 CAD. At least 62 retailers stock this exact specification, and 30% of the stones appear at more than one of them, with an average price spread of 55%. Half of all listings fall between $4,771 CAD and $8,219 CAD per carat. The same specification in lab grown form lists at a median of about $805 CAD per carat. Over the last 30 days the median price moved -0.9% and the number of listings moved +5.5%.

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 natural stones in the index: 2,948 USD per carat, +1.7% 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

441

Lowest Price

$3,399 CAD

Highest Price

$29,264 CAD

Average Price

$9,101 CAD

Market Intelligence

Retailers Selling

Cross Retailer %

30.4%

Price Spread

55.4%

30-Day Price Trend

-0.9%

30-Day Supply Change

+5.5%

Volatility (30d)

0.00

Price Range

Price per carat distribution across retailers

$4,431/ct

10th Percentile

$2,758

Median

$4,431

90th Percentile

$7,226

Score Distribution

1.3K diamonds scored across 4 quality tiers

Excellent

257 (19.6%)

Very Good

335 (25.5%)

Good

364 (27.7%)

Average

358 (27.2%)

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Consider Instead

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

J VS1J colour is visually identical to I to the naked eye

Save 32%

Lab-Grown I VS1Same specifications, lab-grown origin

Save 87%

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