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

As of September 2026, 5.00ct+ E I1 natural round diamonds typically cost $55,495 AUD to $157,322 AUD, with a median price of $110,714 AUD. There are currently 11 diamonds matching this specification available across retailers.

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

About 41% of these diamonds are available at multiple retailers, with an average price spread of 68%. A comparison tool like Carat Hunter lets you see all the prices side by side.

5.00ct+ E I1 Natural Round

Quick answer

As of September 2026, there are 11 natural round diamonds with E colour and I1 clarity in the 5.00ct+ range available across retailers worldwide. Prices typically run $55,495 AUD to $157,322 AUD, with a median of $110,714 AUD. At least 7 retailers stock this exact specification, and 41% of the stones appear at more than one of them, with an average price spread of 68%. Half of all listings fall between $5,172 AUD and $12,631 AUD per carat. Over the last 30 days the median price moved -51.4% and the number of listings moved -81.2%.

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

Caratlytics Diamond Price Index, August 2026: natural diamonds at 2,184 USD per carat and lab-grown at 464 USD per carat, a natural to lab ratio of 4.7 to 1. Round natural stones in the index: 2,094 USD per carat, -3.8% month on month. See the full index release

Figures come from live listings across more than 100 retailers and refresh daily. The index is a monthly release.

Last updated: September 2026

Available

Lowest Price

$22,187 AUD

Highest Price

$200,927 AUD

Average Price

$103,279 AUD

Market Intelligence

Retailers Selling

Cross Retailer %

40.7%

Price Spread

67.9%

30-Day Price Trend

-51.4%

30-Day Supply Change

-81.2%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$7,882/ct

10th Percentile

$3,576

Median

$7,882

90th Percentile

$9,350

Score Distribution

11 diamonds scored across 3 quality tiers

Very Good

3 (27.3%)

Good

7 (63.6%)

Average

1 (9.1%)

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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