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 HK$6,002 HKD to HK$18,794 HKD, with a median price of HK$10,409 HKD. There are currently 260 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 77%. 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 260 natural cushion diamonds with I colour and VS1 clarity in the 0.75 to 0.99ct range available across retailers worldwide. Prices typically run HK$6,002 HKD to HK$18,794 HKD, with a median of HK$10,409 HKD. 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 77%. Half of all listings fall between HK$10,073 HKD and HK$21,115 HKD per carat. The same specification in lab grown form lists at a median of about HK$3,996 HKD per carat. Over the last 30 days the median price moved +1.3% and the number of listings moved +0.6%.

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

260

Lowest Price

HK$4,160 HKD

Highest Price

HK$49,172 HKD

Average Price

HK$11,473 HKD

Market Intelligence

Retailers Selling

Cross Retailer %

31.7%

Price Spread

77.5%

30-Day Price Trend

+1.3%

30-Day Supply Change

+0.6%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$1,816/ct

10th Percentile

$1,056

Median

$1,816

90th Percentile

$3,647

Score Distribution

744 diamonds scored across 4 quality tiers

Excellent

143 (19.2%)

Very Good

161 (21.6%)

Good

255 (34.3%)

Average

185 (24.9%)

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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

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Lab-Grown I VS1Same specifications, lab-grown origin

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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