How much does a 1.50 to 1.99ct F SI2 natural princess diamond cost?

As of October 2026, 1.50 to 1.99ct F SI2 natural princess diamonds typically cost $4,244 SGD to $13,043 SGD, with a median price of $7,250 SGD. There are currently 145 diamonds matching this specification available across retailers.

Where can I find the best price on a F SI2 princess diamond?

About 35% of these diamonds are available at multiple retailers, with an average price spread of 57%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.50 to 1.99ct F SI2 Natural Princess

Quick answer

As of October 2026, there are 145 natural princess diamonds with F colour and SI2 clarity in the 1.50 to 1.99ct range available across retailers worldwide. Prices typically run $4,244 SGD to $13,043 SGD, with a median of $7,250 SGD. At least 54 retailers stock this exact specification, and 35% of the stones appear at more than one of them, with an average price spread of 57%. Half of all listings fall between $3,382 SGD and $5,957 SGD per carat. The same specification in lab grown form lists at a median of about $507 SGD per carat. Over the last 30 days the median price moved -1.9% and the number of listings moved +7.4%.

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. Princess natural stones in the index: 2,158 USD per carat, +5.7% 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: October 2026

Available

145

Lowest Price

$2,916 SGD

Highest Price

$26,205 SGD

Average Price

$8,089 SGD

Market Intelligence

Retailers Selling

Cross Retailer %

35.2%

Price Spread

57.5%

30-Day Price Trend

-1.9%

30-Day Supply Change

+7.4%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$3,494/ct

10th Percentile

$2,166

Median

$3,494

90th Percentile

$5,891

Score Distribution

396 diamonds scored across 4 quality tiers

Excellent

84 (21.2%)

Very Good

87 (22.0%)

Good

85 (21.5%)

Average

140 (35.4%)

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Consider Instead

Save money without compromising on what matters. These alternatives are visually similar but cost less.

F I1I1 inclusions are not visible without magnification

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Lab-Grown F SI2Same specifications, lab-grown origin

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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