How much does a 0.75 to 0.99ct G IF natural marquise diamond cost?

As of October 2026, 0.75 to 0.99ct G IF natural marquise diamonds typically cost $2,566 USD to $7,003 USD, with a median price of $3,814 USD. There are currently 11 diamonds matching this specification available across retailers.

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

About 35% of these diamonds are available at multiple retailers, with an average price spread of 51%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.75 to 0.99ct G IF Natural Marquise

Quick answer

As of October 2026, there are 11 natural marquise diamonds with G color and IF clarity in the 0.75 to 0.99ct range available across retailers worldwide. Prices typically run $2,566 USD to $7,003 USD, with a median of $3,814 USD. At least 39 retailers stock this exact specification, and 35% of the stones appear at more than one of them, with an average price spread of 51%. Half of all listings fall between $3,413 USD and $5,689 USD per carat. The same specification in lab grown form lists at a median of about $794 USD per carat. Over the last 30 days the median price moved +2.2% and the number of listings moved -3.7%.

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

$1,756 USD

Highest Price

$9,665 USD

Average Price

$4,295 USD

Market Intelligence

Retailers Selling

Cross Retailer %

35.4%

Price Spread

50.6%

30-Day Price Trend

+2.2%

30-Day Supply Change

-3.7%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$4,494/ct

10th Percentile

$2,561

Median

$4,494

90th Percentile

$7,838

Score Distribution

32 diamonds scored across 4 quality tiers

Excellent

9 (28.1%)

Very Good

7 (21.9%)

Good

7 (21.9%)

Average

9 (28.1%)

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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