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

As of November 2026, 1.50 to 1.99ct G IF natural marquise diamonds typically cost HK$134,498 HKD to HK$195,100 HKD, with a median price of HK$147,344 HKD. There are currently 4 diamonds matching this specification available across retailers.

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

About 38% of these diamonds are available at multiple retailers, with an average price spread of 21%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.50 to 1.99ct G IF Natural Marquise

Quick answer

As of November 2026, there are 4 natural marquise diamonds with G colour and IF clarity in the 1.50 to 1.99ct range available across retailers worldwide. Prices typically run HK$134,498 HKD to HK$195,100 HKD, with a median of HK$147,344 HKD. At least 39 retailers stock this exact specification, and 38% of the stones appear at more than one of them, with an average price spread of 21%. Half of all listings fall between HK$91,287 HKD and HK$112,022 HKD per carat. The same specification in lab grown form lists at a median of about HK$8,352 HKD per carat. Over the last 30 days the median price moved +1.2% and the number of listings moved +29.9%.

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

HK$124,433 HKD

Highest Price

HK$250,369 HKD

Average Price

HK$159,436 HKD