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

As of October 2026, 5.00ct+ G IF lab grown marquise diamonds typically cost $15,794 CAD to $15,794 CAD, with a median price of $15,794 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 36% of these diamonds are available at multiple retailers, with an average price spread of 69%. A comparison tool like Carat Hunter lets you see all the prices side by side.

5.00ct+ G IF Lab Grown Marquise

Quick answer

As of October 2026, there are 1 lab grown marquise diamonds with G color and IF clarity in the 5.00ct+ range available across retailers worldwide. Prices typically run $15,794 CAD to $15,794 CAD, with a median of $15,794 CAD. At least 34 retailers stock this exact specification, and 36% of the stones appear at more than one of them, with an average price spread of 69%. Half of all listings fall between $2,260 CAD and $4,577 CAD per carat. Over the last 30 days the median price moved -2.2% and the number of listings moved +21.7%.

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

5.25ct Marquise G IF, IGI, grade A, from $15,794 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 lab grown stones in the index: 485 USD per carat, -3.2% 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

$15,794 CAD

Highest Price

$70,764 CAD

Average Price

$15,794 CAD

Market Intelligence

Retailers Selling

Cross Retailer %

35.7%

Price Spread

69.1%

30-Day Price Trend

-2.2%

30-Day Supply Change

+21.7%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$2,396/ct

10th Percentile

$1,234

Median

$2,396

90th Percentile

$5,754

Score Distribution

1 diamonds scored across 1 quality tiers

Excellent

1 (100.0%)

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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