How much does a 0.75 to 0.99ct D I1 natural oval diamond cost?

As of October 2026, 0.75 to 0.99ct D I1 natural oval diamonds typically cost £892 GBP to £1,915 GBP, with a median price of £1,352 GBP. There are currently 27 diamonds matching this specification available across retailers.

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

About 11% of these diamonds are available at multiple retailers, with an average price spread of 36%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.75 to 0.99ct D I1 Natural Oval

Quick answer

As of October 2026, there are 27 natural oval diamonds with D colour and I1 clarity in the 0.75 to 0.99ct range available across retailers worldwide. Prices typically run £892 GBP to £1,915 GBP, with a median of £1,352 GBP. At least 27 retailers stock this exact specification, and 11% of the stones appear at more than one of them, with an average price spread of 36%. Half of all listings fall between £1,176 GBP and £1,689 GBP per carat. Over the last 30 days the median price moved -0.1% and the number of listings moved -3.6%.

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

£577 GBP

Highest Price

£3,037 GBP

Average Price

£1,406 GBP

Market Intelligence

Retailers Selling

Cross Retailer %

11.2%

Price Spread

36.2%

30-Day Price Trend

-0.1%

30-Day Supply Change

-3.6%

Volatility (30d)

0.00

Price Range

Price per carat distribution across retailers

$1,889/ct

10th Percentile

$1,243

Median

$1,889

90th Percentile

$2,671

Score Distribution

114 diamonds scored across 4 quality tiers

Excellent

13 (11.4%)

Very Good

10 (8.8%)

Good

8 (7.0%)

Average

83 (72.8%)

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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