How much does a 3.00 to 4.99ct D IF lab grown marquise diamond cost?

As of October 2026, 3.00 to 4.99ct D IF lab grown marquise diamonds typically cost $4,676 CAD to $19,369 CAD, with a median price of $8,167 CAD. There are currently 189 diamonds matching this specification available across retailers.

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

About 39% of these diamonds are available at multiple retailers, with an average price spread of 83%. A comparison tool like Carat Hunter lets you see all the prices side by side.

3.00 to 4.99ct D IF Lab Grown Marquise

Quick answer

As of October 2026, there are 189 lab grown marquise diamonds with D color and IF clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run $4,676 CAD to $19,369 CAD, with a median of $8,167 CAD. At least 49 retailers stock this exact specification, and 39% of the stones appear at more than one of them, with an average price spread of 83%. Half of all listings fall between $1,789 CAD and $3,945 CAD per carat. The same specification in natural form lists at a median of about $34,382 CAD per carat. Over the last 30 days the median price moved -17.5% and the number of listings moved +24.7%.

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 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

189

Lowest Price

$2,316 CAD

Highest Price

$62,698 CAD

Average Price

$11,358 CAD

Market Intelligence

Retailers Selling

Cross Retailer %

39.1%

Price Spread

82.7%

30-Day Price Trend

-17.5%

30-Day Supply Change

+24.7%

Volatility (30d)

0.05

Price Range

Price per carat distribution across retailers

$1,863/ct

10th Percentile

$982

Median

$1,863

90th Percentile

$4,047

Score Distribution

585 diamonds scored across 4 quality tiers

Excellent

203 (34.7%)

Very Good

148 (25.3%)

Good

173 (29.6%)

Average

61 (10.4%)

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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