How much does a 3.00 to 4.99ct E I1 natural cushion diamond cost?

As of October 2026, 3.00 to 4.99ct E I1 natural cushion diamonds typically cost $24,942 SGD to $80,411 SGD, with a median price of $59,144 SGD. There are currently 4 diamonds matching this specification available across retailers.

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

About 14% of these diamonds are available at multiple retailers, with an average price spread of 84%. A comparison tool like Carat Hunter lets you see all the prices side by side.

3.00 to 4.99ct E I1 Natural Cushion

Quick answer

As of October 2026, there are 4 natural cushion diamonds with E colour and I1 clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run $24,942 SGD to $80,411 SGD, with a median of $59,144 SGD. At least 12 retailers stock this exact specification, and 14% of the stones appear at more than one of them, with an average price spread of 84%. Half of all listings fall between $8,604 SGD and $18,629 SGD per carat.

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

$21,761 SGD

Highest Price

$87,953 SGD

Average Price

$52,529 SGD

Market Intelligence

Retailers Selling

Cross Retailer %

13.8%

Price Spread

83.7%

Price Range

Price per carat distribution across retailers

$9,368/ct

10th Percentile

$5,235

Median

$9,368

90th Percentile

$19,918

Score Distribution

11 diamonds scored across 3 quality tiers

Very Good

1 (9.1%)

Good

4 (36.4%)

Average

6 (54.5%)

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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