How much does a 5.00ct+ I VS1 natural cushion diamond cost?

As of October 2026, 5.00ct+ I VS1 natural cushion diamonds typically cost $70,363 CAD to $244,156 CAD, with a median price of $132,485 CAD. There are currently 27 diamonds matching this specification available across retailers.

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

About 38% of these diamonds are available at multiple retailers, with an average price spread of 50%. A comparison tool like Carat Hunter lets you see all the prices side by side.

5.00ct+ I VS1 Natural Cushion

Quick answer

As of October 2026, there are 27 natural cushion diamonds with I color and VS1 clarity in the 5.00ct+ range available across retailers worldwide. Prices typically run $70,363 CAD to $244,156 CAD, with a median of $132,485 CAD. At least 44 retailers stock this exact specification, and 38% of the stones appear at more than one of them, with an average price spread of 50%. Half of all listings fall between $21,368 CAD and $34,493 CAD per carat. The same specification in lab grown form lists at a median of about $770 CAD per carat. Over the last 30 days the median price moved -0.2% and the number of listings moved +11.7%.

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 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

Lowest Price

$55,414 CAD

Highest Price

$515,640 CAD

Average Price

$157,022 CAD

Market Intelligence

Retailers Selling

Cross Retailer %

38.0%

Price Spread

49.7%

30-Day Price Trend

-0.2%

30-Day Supply Change

+11.7%

Volatility (30d)

0.00

Price Range

Price per carat distribution across retailers

$18,920/ct

10th Percentile

$11,959

Median

$18,920

90th Percentile

$31,158

Score Distribution

44 diamonds scored across 4 quality tiers

Excellent

17 (38.6%)

Very Good

7 (15.9%)

Good

8 (18.2%)

Average

12 (27.3%)

Find Your Diamond

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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 30%

Lab-Grown I VS1Same specifications, lab-grown origin

Save 97%

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