How much does a 5.00ct+ E I1 natural oval diamond cost?

As of October 2026, 5.00ct+ E I1 natural oval diamonds typically cost $34,315 SGD to $202,542 SGD, with a median price of $183,192 SGD. There are currently 3 diamonds matching this specification available across retailers.

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

About 23% of these diamonds are available at multiple retailers, with an average price spread of 12%. A comparison tool like Carat Hunter lets you see all the prices side by side.

5.00ct+ E I1 Natural Oval

Quick answer

As of October 2026, there are 3 natural oval diamonds with E colour and I1 clarity in the 5.00ct+ range available across retailers worldwide. Prices typically run $34,315 SGD to $202,542 SGD, with a median of $183,192 SGD. At least 10 retailers stock this exact specification, and 23% of the stones appear at more than one of them, with an average price spread of 12%. Half of all listings fall between $7,265 SGD and $8,198 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. Oval natural stones in the index: 2,655 USD per carat, +10.2% 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

$29,563 SGD

Highest Price

$211,948 SGD

Average Price

$128,529 SGD

Market Intelligence

Retailers Selling

Cross Retailer %

23.1%

Price Spread

11.9%

Price Range

Price per carat distribution across retailers

$6,098/ct

10th Percentile

$5,217

Median

$6,098

90th Percentile

$9,655

Score Distribution

7 diamonds scored across 3 quality tiers

Very Good

2 (28.6%)

Good

1 (14.3%)

Average

4 (57.1%)

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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