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

As of September 2026, 1.00 to 1.49ct I SI1 natural princess diamonds typically cost ₹1,38,698 INR to ₹3,68,870 INR, with a median price of ₹2,03,791 INR. There are currently 777 diamonds matching this specification available across retailers.

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

Compare prices across retailers on Carat Hunter to see all your options.

1.00 to 1.49ct I SI1 Natural Princess

Quick answer

As of September 2026, there are 777 natural princess diamonds with I colour and SI1 clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run ₹1,38,698 INR to ₹3,68,870 INR, with a median of ₹2,03,791 INR. At least 56 retailers stock this exact specification. Half of all listings fall between ₹1,69,350 INR and ₹2,56,159 INR per carat. The same specification in lab grown form lists at a median of about ₹1,33,964 INR per carat.

Three of the best scored stones at this specification right now:

Caratlytics Diamond Price Index, August 2026: natural diamonds at 2,184 USD per carat and lab-grown at 464 USD per carat, a natural to lab ratio of 4.7 to 1. Princess natural stones in the index: 2,073 USD per carat, -3.2% month on month. See the full index release

Figures come from live listings across more than 100 retailers and refresh daily. The index is a monthly release.

Last updated: September 2026

Available

777

Lowest Price

₹90,874 INR

Highest Price

₹16,07,415 INR

Average Price

₹2,32,864 INR