How much does a 0.20 to 0.49ct G IF natural marquise diamond cost?

As of October 2026, 0.20 to 0.49ct G IF natural marquise diamonds typically cost $460 CAD to $1,190 CAD, with a median price of $741 CAD. There are currently 143 diamonds matching this specification available across retailers.

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

About 47% of these diamonds are available at multiple retailers, with an average price spread of 46%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.20 to 0.49ct G IF Natural Marquise

Quick answer

As of October 2026, there are 143 natural marquise diamonds with G color and IF clarity in the 0.20 to 0.49ct range available across retailers worldwide. Prices typically run $460 CAD to $1,190 CAD, with a median of $741 CAD. At least 17 retailers stock this exact specification, and 47% of the stones appear at more than one of them, with an average price spread of 46%. Half of all listings fall between $2,398 CAD and $3,961 CAD per carat. The same specification in lab grown form lists at a median of about $1,302 CAD per carat.

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

143

Lowest Price

$407 CAD

Highest Price

$2,374 CAD

Average Price

$785 CAD