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

As of November 2026, 1.50 to 1.99ct G SI1 natural marquise diamonds typically cost ₹7,90,037 INR to ₹21,08,900 INR, with a median price of ₹10,95,518 INR. There are currently 84 diamonds matching this specification available across retailers.

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

About 30% of these diamonds are available at multiple retailers, with an average price spread of 35%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.50 to 1.99ct G SI1 Natural Marquise

Quick answer

As of November 2026, there are 84 natural marquise diamonds with G colour and SI1 clarity in the 1.50 to 1.99ct range available across retailers worldwide. Prices typically run ₹7,90,037 INR to ₹21,08,900 INR, with a median of ₹10,95,518 INR. At least 57 retailers stock this exact specification, and 30% of the stones appear at more than one of them, with an average price spread of 35%. Half of all listings fall between ₹6,31,987 INR and ₹8,90,889 INR per carat. The same specification in lab grown form lists at a median of about ₹42,800 INR per carat. Over the last 30 days the median price moved -1.6% and the number of listings moved +12.6%.

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

Caratlytics Diamond Price Index, October 2026: natural diamonds at 2,202 USD per carat and lab-grown at 462 USD per carat, a natural to lab ratio of 4.8 to 1. Marquise natural stones in the index: 2,177 USD per carat, -4.2% 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: November 2026

Available

Lowest Price

₹5,14,431 INR

Highest Price

₹27,13,192 INR

Average Price

₹13,17,948 INR