How much does a 0.50 to 0.74ct I SI2 natural radiant diamond cost?

As of October 2026, 0.50 to 0.74ct I SI2 natural radiant diamonds typically cost ₹57,236 INR to ₹1,08,772 INR, with a median price of ₹78,080 INR. There are currently 33 diamonds matching this specification available across retailers.

Where can I find the best price on a I SI2 radiant diamond?

About 21% of these diamonds are available at multiple retailers, with an average price spread of 54%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.50 to 0.74ct I SI2 Natural Radiant

Quick answer

As of October 2026, there are 33 natural radiant diamonds with I colour and SI2 clarity in the 0.50 to 0.74ct range available across retailers worldwide. Prices typically run ₹57,236 INR to ₹1,08,772 INR, with a median of ₹78,080 INR. At least 41 retailers stock this exact specification, and 21% of the stones appear at more than one of them, with an average price spread of 54%. Half of all listings fall between ₹1,13,957 INR and ₹1,88,127 INR per carat. The same specification in lab grown form lists at a median of about ₹65,347 INR per carat. Over the last 30 days the median price moved +0.7% and the number of listings moved +6.4%.

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. Radiant natural stones in the index: 3,091 USD per carat, +13.2% 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

₹37,136 INR

Highest Price

₹3,00,229 INR

Average Price

₹82,093 INR