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 €45,264 EUR to €156,133 EUR, with a median price of €84,556 EUR. There are currently 26 diamonds matching this specification available across retailers.

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

About 37% 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 26 natural cushion diamonds with I colour and VS1 clarity in the 5.00ct+ range available across retailers worldwide. Prices typically run €45,264 EUR to €156,133 EUR, with a median of €84,556 EUR. At least 44 retailers stock this exact specification, and 37% of the stones appear at more than one of them, with an average price spread of 50%. Half of all listings fall between €13,310 EUR and €21,435 EUR per carat. The same specification in lab grown form lists at a median of about €486 EUR per carat. Over the last 30 days the median price moved -0.4% and the number of listings moved +10.8%.

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

€35,357 EUR

Highest Price

€301,670 EUR

Average Price

€100,830 EUR

Market Intelligence

Retailers Selling

Cross Retailer %

37.4%

Price Spread

50.1%

30-Day Price Trend

-0.4%

30-Day Supply Change

+10.8%

Volatility (30d)

0.00

Price Range

Price per carat distribution across retailers

$18,133/ct

10th Percentile

$11,545

Median

$18,133

90th Percentile

$29,768

Score Distribution

44 diamonds scored across 4 quality tiers

Excellent

17 (38.6%)

Very Good

6 (13.6%)

Good

9 (20.5%)

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 29%

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