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

As of October 2026, 2.00 to 2.99ct G SI1 natural marquise diamonds typically cost $21,565 CAD to $63,354 CAD, with a median price of $31,057 CAD. There are currently 72 diamonds matching this specification available across retailers.

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

About 35% of these diamonds are available at multiple retailers, with an average price spread of 25%. A comparison tool like Carat Hunter lets you see all the prices side by side.

2.00 to 2.99ct G SI1 Natural Marquise

Quick answer

As of October 2026, there are 72 natural marquise diamonds with G color and SI1 clarity in the 2.00 to 2.99ct range available across retailers worldwide. Prices typically run $21,565 CAD to $63,354 CAD, with a median of $31,057 CAD. At least 60 retailers stock this exact specification, and 35% of the stones appear at more than one of them, with an average price spread of 25%. Half of all listings fall between $14,250 CAD and $18,314 CAD per carat. The same specification in lab grown form lists at a median of about $743 CAD per carat. Over the last 30 days the median price moved -2.9% and the number of listings moved +24.4%.

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

Lowest Price

$15,018 CAD

Highest Price

$110,769 CAD

Average Price

$38,339 CAD