How much does a 1.50 to 1.99ct G SI1 natural cushion diamond cost?

As of November 2026, 1.50 to 1.99ct G SI1 natural cushion diamonds typically cost ₹3,65,917 INR to ₹10,52,480 INR, with a median price of ₹6,62,291 INR. There are currently 375 diamonds matching this specification available across retailers.

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

About 31% of these diamonds are available at multiple retailers, with an average price spread of 58%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.50 to 1.99ct G SI1 Natural Cushion

Quick answer

As of November 2026, there are 375 natural cushion diamonds with G colour and SI1 clarity in the 1.50 to 1.99ct range available across retailers worldwide. Prices typically run ₹3,65,917 INR to ₹10,52,480 INR, with a median of ₹6,62,291 INR. At least 60 retailers stock this exact specification, and 31% of the stones appear at more than one of them, with an average price spread of 58%. Half of all listings fall between ₹3,31,582 INR and ₹5,90,445 INR per carat. The same specification in lab grown form lists at a median of about ₹45,079 INR per carat. Over the last 30 days the median price moved -2.6% and the number of listings moved +4.7%.

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. Cushion natural stones in the index: 2,948 USD per carat, +1.7% 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

375

Lowest Price

₹2,14,112 INR

Highest Price

₹21,21,358 INR

Average Price

₹6,95,965 INR