How much does a 5.00ct+ G IF natural marquise diamond cost?

As of September 2026, 5.00ct+ G IF natural marquise diamonds typically cost $157,737 USD to $166,446 USD, with a median price of $162,091 USD. There are currently 2 diamonds matching this specification available across retailers.

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

Compare prices across retailers on Carat Hunter to see all your options.

5.00ct+ G IF Natural Marquise

Quick answer

As of September 2026, there are 2 natural marquise diamonds with G color and IF clarity in the 5.00ct+ range available across retailers worldwide. Prices typically run $157,737 USD to $166,446 USD, with a median of $162,091 USD. At least 12 retailers stock this exact specification. Half of all listings fall between $34,092 USD and $38,373 USD per carat. The same specification in lab grown form lists at a median of about $2,521 USD per carat.

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

5.03ct Marquise G IF, GIA, score 85 of 100, from $156,648 USD

Caratlytics Diamond Price Index, August 2026: natural diamonds at 2,184 USD per carat and lab-grown at 464 USD per carat, a natural to lab ratio of 4.7 to 1. Marquise natural stones in the index: 2,114 USD per carat, -8.8% month on month. See the full index release

Figures come from live listings across more than 100 retailers and refresh daily. The index is a monthly release.

Last updated: September 2026

Available

Lowest Price

$156,648 USD

Highest Price

$214,521 USD

Average Price

$162,091 USD