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

As of October 2026, 0.75 to 0.99ct I IF natural cushion diamonds typically cost $844 USD to $2,170 USD, with a median price of $1,231 USD. There are currently 44 diamonds matching this specification available across retailers.

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

About 32% of these diamonds are available at multiple retailers, with an average price spread of 57%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.75 to 0.99ct I IF Natural Cushion

Quick answer

As of October 2026, there are 44 natural cushion diamonds with I color and IF clarity in the 0.75 to 0.99ct range available across retailers worldwide. Prices typically run $844 USD to $2,170 USD, with a median of $1,231 USD. At least 51 retailers stock this exact specification, and 32% of the stones appear at more than one of them, with an average price spread of 57%. Half of all listings fall between $1,302 USD and $2,215 USD per carat. Over the last 30 days the median price moved -1.2% 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

Lowest Price

$618 USD

Highest Price

$4,879 USD

Average Price

$1,416 USD

Market Intelligence

Retailers Selling

Cross Retailer %

31.5%

Price Spread

57.0%

30-Day Price Trend

-1.2%

30-Day Supply Change

-0.6%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$1,602/ct

10th Percentile

$1,133

Median

$1,602

90th Percentile

$3,141

Score Distribution

122 diamonds scored across 5 quality tiers

Exceptional

1 (0.8%)

Excellent

33 (27.0%)

Very Good

25 (20.5%)

Good

39 (32.0%)

Average

24 (19.7%)

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

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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