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

As of October 2026, 0.75 to 0.99ct D I1 natural round diamonds typically cost €850 EUR to €2,624 EUR, with a median price of €1,546 EUR. There are currently 101 diamonds matching this specification available across retailers.

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

About 27% of these diamonds are available at multiple retailers, with an average price spread of 63%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.75 to 0.99ct D I1 Natural Round

Quick answer

As of October 2026, there are 101 natural round diamonds with D colour and I1 clarity in the 0.75 to 0.99ct range available across retailers worldwide. Prices typically run €850 EUR to €2,624 EUR, with a median of €1,546 EUR. At least 29 retailers stock this exact specification, and 27% of the stones appear at more than one of them, with an average price spread of 63%. Half of all listings fall between €1,186 EUR and €2,148 EUR per carat. Over the last 30 days the median price moved -4.3% and the number of listings moved +1.2%.

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

101

Lowest Price

€606 EUR

Highest Price

€4,397 EUR

Average Price

€1,684 EUR

Market Intelligence

Retailers Selling

Cross Retailer %

27.4%

Price Spread

62.8%

30-Day Price Trend

-4.3%

30-Day Supply Change

+1.2%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$1,704/ct

10th Percentile

$1,087

Median

$1,704

90th Percentile

$3,358

Score Distribution

289 diamonds scored across 4 quality tiers

Excellent

39 (13.5%)

Very Good

37 (12.8%)

Good

47 (16.3%)

Average

166 (57.4%)

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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