How much does a 3.00 to 4.99ct G SI1 natural princess diamond cost?

As of October 2026, 3.00 to 4.99ct G SI1 natural princess diamonds typically cost HK$215,994 HKD to HK$447,548 HKD, with a median price of HK$322,851 HKD. There are currently 28 diamonds matching this specification available across retailers.

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

About 30% of these diamonds are available at multiple retailers, with an average price spread of 36%. A comparison tool like Carat Hunter lets you see all the prices side by side.

3.00 to 4.99ct G SI1 Natural Princess

Quick answer

As of October 2026, there are 28 natural princess diamonds with G colour and SI1 clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run HK$215,994 HKD to HK$447,548 HKD, with a median of HK$322,851 HKD. At least 53 retailers stock this exact specification, and 30% of the stones appear at more than one of them, with an average price spread of 36%. Half of all listings fall between HK$73,857 HKD and HK$105,147 HKD per carat. The same specification in lab grown form lists at a median of about HK$2,733 HKD per carat. Over the last 30 days the median price moved -0.2% and the number of listings moved +8.1%.

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

HK$127,635 HKD

Highest Price

HK$655,210 HKD

Average Price

HK$326,826 HKD