How much does a 3.00 to 4.99ct G IF natural marquise diamond cost?

As of October 2026, 3.00 to 4.99ct G IF natural marquise diamonds typically cost $81,084 CAD to $118,730 CAD, with a median price of $94,330 CAD. There are currently 1 diamonds matching this specification available across retailers.

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

About 32% of these diamonds are available at multiple retailers, with an average price spread of 20%. A comparison tool like Carat Hunter lets you see all the prices side by side.

3.00 to 4.99ct G IF Natural Marquise

Quick answer

As of October 2026, there are 1 natural marquise diamonds with G color and IF clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run $81,084 CAD to $118,730 CAD, with a median of $94,330 CAD. At least 30 retailers stock this exact specification, and 32% of the stones appear at more than one of them, with an average price spread of 20%. Half of all listings fall between $27,689 CAD and $33,675 CAD per carat. The same specification in lab grown form lists at a median of about $1,605 CAD per carat. Over the last 30 days the median price moved +3.1% and the number of listings moved +33.8%.

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

3.04ct Marquise G IF, GIA, grade A, from $80,862 CAD

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

$80,862 CAD

Highest Price

$149,502 CAD

Average Price

$97,754 CAD

Market Intelligence

Retailers Selling

Cross Retailer %

32.0%

Price Spread

19.7%

30-Day Price Trend

+3.1%

30-Day Supply Change

+33.8%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$21,771/ct

10th Percentile

$17,801

Median

$21,771

90th Percentile

$25,787

Score Distribution

5 diamonds scored across 4 quality tiers

Excellent

1 (20.0%)

Very Good

1 (20.0%)

Good

1 (20.0%)

Average

2 (40.0%)

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Search 1 G IF marquise diamonds and compare prices.

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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

Save 27%

Lab-Grown G IFSame specifications, lab-grown origin

Save 95%

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