How much does a 0.75 to 0.99ct M SI2 natural round diamond cost?

As of November 6, 2026, 0.75 to 0.99ct M SI2 natural round diamonds typically cost $816 CAD to $2,582 CAD, with a median price of $1,363 CAD. There are currently 205 diamonds matching this specification available across retailers.

Where can I find the best price on a M SI2 round diamond?

About 38% of these diamonds are available at multiple retailers, with an average price spread of 80%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.75 to 0.99ct M SI2 Natural Round

Quick answer

As of November 6, 2026, there are 205 natural round diamonds with M color and SI2 clarity in the 0.75 to 0.99ct range available across retailers worldwide. Prices typically run $816 CAD to $2,582 CAD, with a median of $1,363 CAD. Half of all listings fall between $1,162 CAD and $2,467 CAD per carat. The same specification in lab grown form lists at a median of about $1,171 CAD per carat. Over the last 30 days the median price moved -3.7% and the number of listings moved +28.8%.

Three of the best scored stones at this specification right now:

Caratlytics Diamond Price Index, October 2026: natural diamonds at 2,202 USD per carat and lab-grown at 462 USD per carat, a natural to lab ratio of 4.8 to 1. Round natural stones in the index: 2,124 USD per carat, -6.9% month on month. See the full index release

Figures come from current listings across more than 125 retailers. The index is a monthly release.

Last updated: November 6, 2026

Available

205

Lowest Price

$520 CAD

Highest Price

$4,344 CAD

Average Price

$1,559 CAD

Market Intelligence

Cross Retailer %

38.0%

Price Spread

79.8%

30-Day Price Trend

-3.7%

30-Day Supply Change

+28.8%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$1,171/ct

10th Percentile

$667

Median

$1,171

90th Percentile

$2,052

Score Distribution

205 diamonds scored across 4 quality tiers

Excellent

14 (6.8%)

Very Good

69 (33.7%)

Good

34 (16.6%)

Average

88 (42.9%)

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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