How much does a 2.00 to 2.99ct E SI1 natural marquise diamond cost?

As of November 2026, 2.00 to 2.99ct E SI1 natural marquise diamonds typically cost HK$139,736 HKD to HK$287,613 HKD, with a median price of HK$175,676 HKD. There are currently 47 diamonds matching this specification available across retailers.

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

About 37% of these diamonds are available at multiple retailers, with an average price spread of 26%. A comparison tool like Carat Hunter lets you see all the prices side by side.

2.00 to 2.99ct E SI1 Natural Marquise

Quick answer

As of November 2026, there are 47 natural marquise diamonds with E colour and SI1 clarity in the 2.00 to 2.99ct range available across retailers worldwide. Prices typically run HK$139,736 HKD to HK$287,613 HKD, with a median of HK$175,676 HKD. At least 59 retailers stock this exact specification, and 37% of the stones appear at more than one of them, with an average price spread of 26%. Half of all listings fall between HK$85,483 HKD and HK$110,564 HKD per carat. The same specification in lab grown form lists at a median of about HK$3,097 HKD per carat. Over the last 30 days the median price moved -0.6% and the number of listings moved +21.2%.

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: November 2026

Available

Lowest Price

HK$84,502 HKD

Highest Price

HK$583,171 HKD

Average Price

HK$211,403 HKD