How much does a 1.00 to 1.49ct G IF natural marquise diamond cost?

As of September 2026, 1.00 to 1.49ct G IF natural marquise diamonds typically cost $4,003 USD to $7,663 USD, with a median price of $5,730 USD. There are currently 119 diamonds matching this specification available across retailers.

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

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1.00 to 1.49ct G IF Natural Marquise

Quick answer

As of September 2026, there are 119 natural marquise diamonds with G color and IF clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run $4,003 USD to $7,663 USD, with a median of $5,730 USD. At least 51 retailers stock this exact specification. Half of all listings fall between $5,131 USD and $7,132 USD per carat. The same specification in lab grown form lists at a median of about $686 USD per carat.

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

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

119

Lowest Price

$2,738 USD

Highest Price

$19,177 USD

Average Price

$5,920 USD

Market Intelligence

Retailers Selling

Price Spread

32.9%

Price Range

Price per carat distribution across retailers

$6,082/ct

10th Percentile

$4,467

Median

$6,082

90th Percentile

$8,319

Score Distribution

118 diamonds scored across 4 quality tiers

Excellent

24 (20.3%)

Very Good

46 (39.0%)

Good

25 (21.2%)

Average

23 (19.5%)

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Consider Instead

Save money without compromising on what matters. These alternatives are visually similar but cost less.

H IFH colour is visually identical to G to the naked eye

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Lab-Grown G IFSame specifications, lab-grown origin

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Related Specifications

D IF D VVS1 D VVS2 D VS1 D VS2 D SI1 E IF E VVS1 E VVS2 E VS1 E VS2 E SI1 F IF F VVS1 F VVS2 F VS1 F VS2 F SI1 G IF G VVS1 G VVS2 G VS1 G VS2 G SI1 H IF H VVS1 H VVS2 H VS1 H VS2 H SI1 I IF I VVS1 I VVS2 I VS1 I VS2 I SI1