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

As of November 2026, 5.00ct+ D I1 natural round diamonds typically cost €43,402 EUR to €145,990 EUR, with a median price of €83,582 EUR. There are currently 4 diamonds matching this specification available across retailers.

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

About 13% of these diamonds are available at multiple retailers, with an average price spread of 62%. A comparison tool like Carat Hunter lets you see all the prices side by side.

5.00ct+ D I1 Natural Round

Quick answer

As of November 2026, there are 4 natural round diamonds with D color and I1 clarity in the 5.00ct+ range available across retailers worldwide. Prices typically run €43,402 EUR to €145,990 EUR, with a median of €83,582 EUR. At least 13 retailers stock this exact specification, and 13% of the stones appear at more than one of them, with an average price spread of 62%. Half of all listings fall between €9,267 EUR and €15,743 EUR per carat. The same specification in lab grown form lists at a median of about €147 EUR per carat. Over the last 30 days the median price moved -3.9% and the number of listings moved +3.1%.

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. Round natural stones in the index: 2,248 USD per carat, +7.6% 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: November 2026

Available

Lowest Price

€36,365 EUR

Highest Price

€220,076 EUR

Average Price

€95,313 EUR

Market Intelligence

Retailers Selling

Cross Retailer %

12.5%

Price Spread

61.9%

30-Day Price Trend

-3.9%

30-Day Supply Change

+3.1%

Volatility (30d)

0.03

Price Range

Price per carat distribution across retailers

$11,689/ct

10th Percentile

$9,481

Median

$11,689

90th Percentile

$23,610

Score Distribution

10 diamonds scored across 4 quality tiers

Excellent

1 (10.0%)

Very Good

3 (30.0%)

Good

1 (10.0%)

Average

5 (50.0%)

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Consider Instead

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

Lab-Grown D I1Same specifications, lab-grown origin

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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