How much does a 0.75 to 0.99ct I IF natural oval diamond cost?

As of October 2026, 0.75 to 0.99ct I IF natural oval diamonds typically cost £844 GBP to £2,500 GBP, with a median price of £1,337 GBP. There are currently 78 diamonds matching this specification available across retailers.

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

About 39% of these diamonds are available at multiple retailers, with an average price spread of 52%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.75 to 0.99ct I IF Natural Oval

Quick answer

As of October 2026, there are 78 natural oval diamonds with I colour and IF clarity in the 0.75 to 0.99ct range available across retailers worldwide. Prices typically run £844 GBP to £2,500 GBP, with a median of £1,337 GBP. At least 56 retailers stock this exact specification, and 39% of the stones appear at more than one of them, with an average price spread of 52%. Half of all listings fall between £1,490 GBP and £2,479 GBP per carat. Over the last 30 days the median price moved -1.2% and the number of listings moved -5.7%.

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

£585 GBP

Highest Price

£4,790 GBP

Average Price

£1,537 GBP

Market Intelligence

Retailers Selling

Cross Retailer %

39.4%

Price Spread

51.9%

30-Day Price Trend

-1.2%

30-Day Supply Change

-5.7%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$2,540/ct

10th Percentile

$1,624

Median

$2,540

90th Percentile

$4,369

Score Distribution

216 diamonds scored across 4 quality tiers

Excellent

68 (31.5%)

Very Good

57 (26.4%)

Good

53 (24.5%)

Average

38 (17.6%)

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J IFJ colour is visually identical to I 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