How much does a 0.75 to 0.99ct E I1 natural cushion diamond cost?

As of November 6, 2026, 0.75 to 0.99ct E I1 natural cushion diamonds typically cost HK$7,974 HKD to HK$14,064 HKD, with a median price of HK$10,743 HKD. There are currently 82 diamonds matching this specification available across retailers.

Where can I find the best price on a E I1 cushion diamond?

About 5% of these diamonds are available at multiple retailers, with an average price spread of 23%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.75 to 0.99ct E I1 Natural Cushion

Quick answer

As of November 6, 2026, there are 82 natural cushion diamonds with E colour and I1 clarity in the 0.75 to 0.99ct range available across retailers worldwide. Prices typically run HK$7,974 HKD to HK$14,064 HKD, with a median of HK$10,743 HKD. Half of all listings fall between HK$11,119 HKD and HK$14,033 HKD per carat. Over the last 30 days the median price moved +0.5% and the number of listings moved -0.7%.

Three of the best scored stones at this specification right now:

Caratlytics Diamond Price Index, October 2026: natural diamonds at 2,202 USD per carat and lab-grown at 462 USD per carat, a natural to lab ratio of 4.8 to 1. Cushion natural stones in the index: 2,881 USD per carat, -2.5% month on month. See the full index release

Figures come from current listings across more than 125 retailers. The index is a monthly release.

Last updated: November 6, 2026

Available

Lowest Price

HK$6,105 HKD

Highest Price

HK$22,424 HKD

Average Price

HK$11,119 HKD

Market Intelligence

Cross Retailer %

4.9%

Price Spread

23.1%

30-Day Price Trend

+0.5%

30-Day Supply Change

-0.7%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$1,607/ct

10th Percentile

$1,314

Median

$1,607

90th Percentile

$1,939

Score Distribution

82 diamonds scored across 4 quality tiers

Excellent

1 (1.2%)

Very Good

5 (6.1%)

Good

11 (13.4%)

Average

65 (79.3%)

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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