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

As of October 2026, 3.00 to 4.99ct I IF natural oval diamonds typically cost £20,083 GBP to £64,830 GBP, with a median price of £34,337 GBP. There are currently 10 diamonds matching this specification available across retailers.

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

About 34% of these diamonds are available at multiple retailers, with an average price spread of 33%. A comparison tool like Carat Hunter lets you see all the prices side by side.

3.00 to 4.99ct I IF Natural Oval

Quick answer

As of October 2026, there are 10 natural oval diamonds with I colour and IF clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run £20,083 GBP to £64,830 GBP, with a median of £34,337 GBP. At least 50 retailers stock this exact specification, and 34% of the stones appear at more than one of them, with an average price spread of 33%. Half of all listings fall between £9,201 GBP and £12,734 GBP per carat. The same specification in lab grown form lists at a median of about £565 GBP per carat. Over the last 30 days the median price moved -6.7% and the number of listings moved +18.0%.

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

£14,882 GBP

Highest Price

£109,699 GBP

Average Price

£39,966 GBP

Market Intelligence

Retailers Selling

Cross Retailer %

34.3%

Price Spread

32.5%

30-Day Price Trend

-6.7%

30-Day Supply Change

+18.0%

Volatility (30d)

0.03

Price Range

Price per carat distribution across retailers

$14,547/ct

10th Percentile

$9,654

Median

$14,547

90th Percentile

$19,125

Score Distribution

32 diamonds scored across 4 quality tiers

Excellent

11 (34.4%)

Very Good

6 (18.8%)

Good

4 (12.5%)

Average

11 (34.4%)

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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