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

As of November 2026, 0.75 to 0.99ct J I1 natural round diamonds typically cost €575 EUR to €1,809 EUR, with a median price of €993 EUR. There are currently 117 diamonds matching this specification available across retailers.

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

About 31% of these diamonds are available at multiple retailers, with an average price spread of 60%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.75 to 0.99ct J I1 Natural Round

Quick answer

As of November 2026, there are 117 natural round diamonds with J color and I1 clarity in the 0.75 to 0.99ct range available across retailers worldwide. Prices typically run €575 EUR to €1,809 EUR, with a median of €993 EUR. At least 30 retailers stock this exact specification, and 31% of the stones appear at more than one of them, with an average price spread of 60%. Half of all listings fall between €806 EUR and €1,450 EUR per carat. Over the last 30 days the median price moved -1.5% and the number of listings moved -1.1%.

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: November 2026

Available

117

Lowest Price

€196 EUR

Highest Price

€2,925 EUR

Average Price

€1,099 EUR

Market Intelligence

Retailers Selling

Cross Retailer %

31.2%

Price Spread

60.3%

30-Day Price Trend

-1.5%

30-Day Supply Change

-1.1%

Volatility (30d)

0.00

Price Range

Price per carat distribution across retailers

$1,195/ct

10th Percentile

$730

Median

$1,195

90th Percentile

$2,448

Score Distribution

300 diamonds scored across 4 quality tiers

Excellent

20 (6.7%)

Very Good

62 (20.7%)

Good

37 (12.3%)

Average

181 (60.3%)

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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