How much does a 1.50 to 1.99ct L SI1 natural princess diamond cost?

As of November 6, 2026, 1.50 to 1.99ct L SI1 natural princess diamonds typically cost $2,713 CAD to $4,693 CAD, with a median price of $3,254 CAD. There are currently 61 diamonds matching this specification available across retailers.

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

About 54% of these diamonds are available at multiple retailers, with an average price spread of 37%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.50 to 1.99ct L SI1 Natural Princess

Quick answer

As of November 6, 2026, there are 61 natural princess diamonds with L color and SI1 clarity in the 1.50 to 1.99ct range available across retailers worldwide. Prices typically run $2,713 CAD to $4,693 CAD, with a median of $3,254 CAD. Half of all listings fall between $1,812 CAD and $2,557 CAD per carat. Over the last 30 days the median price moved +1.6% and the number of listings moved +63.3%.

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. Princess natural stones in the index: 1,991 USD per carat, -8.2% 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

Lowest Price

$2,353 CAD

Highest Price

$11,367 CAD

Average Price

$3,589 CAD

Market Intelligence

Cross Retailer %

54.1%

Price Spread

36.6%

30-Day Price Trend

+1.6%

30-Day Supply Change

+63.3%

Volatility (30d)

0.00

Price Range

Price per carat distribution across retailers

$1,457/ct

10th Percentile

$1,251

Median

$1,457

90th Percentile

$1,985

Score Distribution

61 diamonds scored across 4 quality tiers

Excellent

13 (21.3%)

Very Good

22 (36.1%)

Good

17 (27.9%)

Average

9 (14.8%)

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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