How much does a 3.00 to 4.99ct I IF natural round diamond cost?

As of October 2026, 3.00 to 4.99ct I IF natural round diamonds typically cost €25,375 EUR to €106,833 EUR, with a median price of €49,497 EUR. There are currently 42 diamonds matching this specification available across retailers.

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

About 34% of these diamonds are available at multiple retailers, with an average price spread of 57%. A comparison tool like Carat Hunter lets you see all the prices side by side.

3.00 to 4.99ct I IF Natural Round

Quick answer

As of October 2026, there are 42 natural round diamonds with I color and IF clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run €25,375 EUR to €106,833 EUR, with a median of €49,497 EUR. At least 47 retailers stock this exact specification, and 34% of the stones appear at more than one of them, with an average price spread of 57%. Half of all listings fall between €10,639 EUR and €18,824 EUR per carat. The same specification in lab grown form lists at a median of about €1,158 EUR per carat. Over the last 30 days the median price moved -3.3% 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: October 2026

Available

Lowest Price

€22,129 EUR

Highest Price

€179,823 EUR

Average Price

€58,474 EUR

Market Intelligence

Retailers Selling

Cross Retailer %

33.5%

Price Spread

57.2%

30-Day Price Trend

-3.3%

30-Day Supply Change

+3.1%

Volatility (30d)

0.02

Price Range

Price per carat distribution across retailers

$15,983/ct

10th Percentile

$9,968

Median

$15,983

90th Percentile

$27,273

Score Distribution

97 diamonds scored across 4 quality tiers

Excellent

36 (37.1%)

Very Good

20 (20.6%)

Good

6 (6.2%)

Average

35 (36.1%)

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Consider Instead

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

J IFJ colour is visually identical to I to the naked eye

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Lab-Grown I IFSame 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