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

As of October 2026, 1.50 to 1.99ct D SI2 natural princess diamonds typically cost $4,900 SGD to $20,317 SGD, with a median price of $8,111 SGD. There are currently 61 diamonds matching this specification available across retailers.

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

About 37% of these diamonds are available at multiple retailers, with an average price spread of 67%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.50 to 1.99ct D SI2 Natural Princess

Quick answer

As of October 2026, there are 61 natural princess diamonds with D colour and SI2 clarity in the 1.50 to 1.99ct range available across retailers worldwide. Prices typically run $4,900 SGD to $20,317 SGD, with a median of $8,111 SGD. At least 51 retailers stock this exact specification, and 37% of the stones appear at more than one of them, with an average price spread of 67%. Half of all listings fall between $3,363 SGD and $6,157 SGD per carat. The same specification in lab grown form lists at a median of about $664 SGD per carat. Over the last 30 days the median price moved -5.5% and the number of listings moved +6.9%.

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

Lowest Price

$3,343 SGD

Highest Price

$37,583 SGD

Average Price

$10,615 SGD

Market Intelligence

Retailers Selling

Cross Retailer %

36.8%

Price Spread

67.1%

30-Day Price Trend

-5.5%

30-Day Supply Change

+6.9%

Volatility (30d)

0.02

Price Range

Price per carat distribution across retailers

$3,246/ct

10th Percentile

$2,217

Median

$3,246

90th Percentile

$6,673

Score Distribution

184 diamonds scored across 4 quality tiers

Excellent

33 (17.9%)

Very Good

39 (21.2%)

Good

47 (25.5%)

Average

65 (35.3%)

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Consider Instead

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

Lab-Grown D 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