How much does a 0.20 to 0.49ct F SI1 natural princess diamond cost?

As of October 2026, 0.20 to 0.49ct F SI1 natural princess diamonds typically cost HK$2,588 HKD to HK$7,530 HKD, with a median price of HK$4,192 HKD. There are currently 249 diamonds matching this specification available across retailers.

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

About 79% of these diamonds are available at multiple retailers, with an average price spread of 39%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.20 to 0.49ct F SI1 Natural Princess

Quick answer

As of October 2026, there are 249 natural princess diamonds with F colour and SI1 clarity in the 0.20 to 0.49ct range available across retailers worldwide. Prices typically run HK$2,588 HKD to HK$7,530 HKD, with a median of HK$4,192 HKD. At least 19 retailers stock this exact specification, and 79% of the stones appear at more than one of them, with an average price spread of 39%. Half of all listings fall between HK$7,125 HKD and HK$10,294 HKD per carat. The same specification in lab grown form lists at a median of about HK$1,846 HKD per carat. Over the last 30 days the median price moved -4.8% and the number of listings moved +8.6%.

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

249

Lowest Price

HK$1,242 HKD

Highest Price

HK$12,299 HKD

Average Price

HK$4,629 HKD

Market Intelligence

Retailers Selling

Cross Retailer %

79.4%

Price Spread

39.4%

30-Day Price Trend

-4.8%

30-Day Supply Change

+8.6%

Volatility (30d)

0.02

Price Range

Price per carat distribution across retailers

$1,026/ct

10th Percentile

$828

Median

$1,026

90th Percentile

$1,561

Score Distribution

600 diamonds scored across 4 quality tiers

Excellent

48 (8.0%)

Very Good

121 (20.2%)

Good

79 (13.2%)

Average

352 (58.7%)

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Consider Instead

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

Lab-Grown F SI1Same specifications, lab-grown origin

Save 74%

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