How much does a 1.00 to 1.49ct E I1 natural cushion diamond cost?

As of October 2026, 1.00 to 1.49ct E I1 natural cushion diamonds typically cost $2,326 SGD to $7,198 SGD, with a median price of $4,663 SGD. There are currently 24 diamonds matching this specification available across retailers.

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

About 11% of these diamonds are available at multiple retailers, with an average price spread of 55%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.00 to 1.49ct E I1 Natural Cushion

Quick answer

As of October 2026, there are 24 natural cushion diamonds with E colour and I1 clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run $2,326 SGD to $7,198 SGD, with a median of $4,663 SGD. At least 23 retailers stock this exact specification, and 11% of the stones appear at more than one of them, with an average price spread of 55%. Half of all listings fall between $2,395 SGD and $4,172 SGD per carat. Over the last 30 days the median price moved -0.8% 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

Lowest Price

$1,001 SGD

Highest Price

$8,267 SGD

Average Price

$4,688 SGD

Market Intelligence

Retailers Selling

Cross Retailer %

11.5%

Price Spread

54.6%

30-Day Price Trend

-0.8%

30-Day Supply Change

+2.1%

Volatility (30d)

0.00

Price Range

Price per carat distribution across retailers

$2,541/ct

10th Percentile

$1,343

Median

$2,541

90th Percentile

$4,235

Score Distribution

176 diamonds scored across 4 quality tiers

Excellent

8 (4.5%)

Very Good

13 (7.4%)

Good

19 (10.8%)

Average

136 (77.3%)

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Save money without compromising on what matters. These alternatives are visually similar but cost less.

F I1F colour is visually identical to E 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