How much does a 1.00 to 1.49ct L SI2 natural marquise diamond cost?

As of November 6, 2026, 1.00 to 1.49ct L SI2 natural marquise diamonds typically cost $1,313 CAD to $3,519 CAD, with a median price of $2,511 CAD. There are currently 130 diamonds matching this specification available across retailers.

Where can I find the best price on a L SI2 marquise diamond?

About 35% of these diamonds are available at multiple retailers, with an average price spread of 52%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.00 to 1.49ct L SI2 Natural Marquise

Quick answer

As of November 6, 2026, there are 130 natural marquise diamonds with L color and SI2 clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run $1,313 CAD to $3,519 CAD, with a median of $2,511 CAD. Half of all listings fall between $1,741 CAD and $2,938 CAD per carat. Over the last 30 days the median price moved +1.7% and the number of listings moved +31.1%.

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. Marquise natural stones in the index: 2,177 USD per carat, -4.2% 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

130

Lowest Price

$898 CAD

Highest Price

$6,537 CAD

Average Price

$2,493 CAD

Market Intelligence

Cross Retailer %

35.4%

Price Spread

51.5%

30-Day Price Trend

+1.7%

30-Day Supply Change

+31.1%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$1,662/ct

10th Percentile

$924

Median

$1,662

90th Percentile

$2,406

Score Distribution

130 diamonds scored across 4 quality tiers

Excellent

17 (13.1%)

Very Good

26 (20.0%)

Good

38 (29.2%)

Average

49 (37.7%)

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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