How much does a 0.50 to 0.74ct L SI1 natural round diamond cost?

As of November 6, 2026, 0.50 to 0.74ct L SI1 natural round diamonds typically cost $434 CAD to $1,514 CAD, with a median price of $793 CAD. There are currently 883 diamonds matching this specification available across retailers.

Where can I find the best price on a L SI1 round diamond?

About 57% 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.

0.50 to 0.74ct L SI1 Natural Round

Quick answer

As of November 6, 2026, there are 883 natural round diamonds with L color and SI1 clarity in the 0.50 to 0.74ct range available across retailers worldwide. Prices typically run $434 CAD to $1,514 CAD, with a median of $793 CAD. Half of all listings fall between $989 CAD and $1,767 CAD per carat. The same specification in lab grown form lists at a median of about $1,121 CAD per carat. Over the last 30 days the median price moved -1.0% and the number of listings moved +5.2%.

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

883

Lowest Price

$233 CAD

Highest Price

$2,825 CAD

Average Price

$873 CAD

Market Intelligence

Cross Retailer %

57.0%

Price Spread

60.4%

30-Day Price Trend

-1.0%

30-Day Supply Change

+5.2%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$923/ct

10th Percentile

$574

Median

$923

90th Percentile

$1,605

Score Distribution

883 diamonds scored across 4 quality tiers

Excellent

156 (17.7%)

Very Good

276 (31.3%)

Good

253 (28.7%)

Average

198 (22.4%)

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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