How much does a 0.20 to 0.49ct I SI2 natural marquise diamond cost?

As of October 2026, 0.20 to 0.49ct I SI2 natural marquise diamonds typically cost ₹22,215 INR to ₹51,919 INR, with a median price of ₹31,352 INR. There are currently 109 diamonds matching this specification available across retailers.

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

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

0.20 to 0.49ct I SI2 Natural Marquise

Quick answer

As of October 2026, there are 109 natural marquise diamonds with I colour and SI2 clarity in the 0.20 to 0.49ct range available across retailers worldwide. Prices typically run ₹22,215 INR to ₹51,919 INR, with a median of ₹31,352 INR. At least 13 retailers stock this exact specification, and 36% of the stones appear at more than one of them, with an average price spread of 30%. Half of all listings fall between ₹91,821 INR and ₹1,25,215 INR per carat. The same specification in lab grown form lists at a median of about ₹69,834 INR per carat. Over the last 30 days the median price moved -6.9% and the number of listings moved -2.4%.

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. Marquise natural stones in the index: 2,268 USD per carat, +10.8% 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

109

Lowest Price

₹16,250 INR

Highest Price

₹88,631 INR

Average Price

₹35,480 INR