How much does a 0.75 to 0.99ct I VS1 natural cushion diamond cost?

As of October 2026, 0.75 to 0.99ct I VS1 natural cushion diamonds typically cost $1,329 NZD to $4,255 NZD, with a median price of $2,282 NZD. There are currently 259 diamonds matching this specification available across retailers.

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

About 32% of these diamonds are available at multiple retailers, with an average price spread of 78%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.75 to 0.99ct I VS1 Natural Cushion

Quick answer

As of October 2026, there are 259 natural cushion diamonds with I colour and VS1 clarity in the 0.75 to 0.99ct range available across retailers worldwide. Prices typically run $1,329 NZD to $4,255 NZD, with a median of $2,282 NZD. At least 62 retailers stock this exact specification, and 32% of the stones appear at more than one of them, with an average price spread of 78%. Half of all listings fall between $2,261 NZD and $4,730 NZD per carat. The same specification in lab grown form lists at a median of about $911 NZD per carat. Over the last 30 days the median price moved +0.0% and the number of listings moved +2.1%.

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

259

Lowest Price

$941 NZD

Highest Price

$11,121 NZD

Average Price

$2,575 NZD

Market Intelligence

Retailers Selling

Cross Retailer %

32.0%

Price Spread

78.1%

30-Day Price Trend

+0.0%

30-Day Supply Change

+2.1%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$1,782/ct

10th Percentile

$1,053

Median

$1,782

90th Percentile

$3,632

Score Distribution

681 diamonds scored across 4 quality tiers

Excellent

142 (20.9%)

Very Good

138 (20.3%)

Good

223 (32.7%)

Average

178 (26.1%)

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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 8%

Lab-Grown I VS1Same specifications, lab-grown origin

Save 71%

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