How much does a 1.00 to 1.49ct G SI1 natural princess diamond cost?

As of November 2026, 1.00 to 1.49ct G SI1 natural princess diamonds typically cost HK$13,261 HKD to HK$40,052 HKD, with a median price of HK$20,917 HKD. There are currently 341 diamonds matching this specification available across retailers.

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

About 39% of these diamonds are available at multiple retailers, with an average price spread of 64%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.00 to 1.49ct G SI1 Natural Princess

Quick answer

As of November 2026, there are 341 natural princess diamonds with G colour and SI1 clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run HK$13,261 HKD to HK$40,052 HKD, with a median of HK$20,917 HKD. At least 62 retailers stock this exact specification, and 39% of the stones appear at more than one of them, with an average price spread of 64%. Half of all listings fall between HK$15,184 HKD and HK$27,110 HKD per carat. The same specification in lab grown form lists at a median of about HK$3,263 HKD per carat. Over the last 30 days the median price moved -0.9% and the number of listings moved +11.8%.

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: November 2026

Available

341

Lowest Price

HK$10,004 HKD

Highest Price

HK$72,170 HKD

Average Price

HK$23,885 HKD