How much does a 3.00 to 4.99ct D FL lab grown cushion diamond cost?

As of September 2026, 3.00 to 4.99ct D FL lab grown cushion diamonds typically cost $4,998 CAD to $28,044 CAD, with a median price of $13,610 CAD. There are currently 5,006 diamonds matching this specification available across retailers.

Where can I find the best price on a D FL cushion diamond?

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3.00 to 4.99ct D FL Lab Grown Cushion

Quick answer

As of September 2026, there are 5,006 lab grown cushion diamonds with D color and FL clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run $4,998 CAD to $28,044 CAD, with a median of $13,610 CAD. At least 30 retailers stock this exact specification. Half of all listings fall between $1,966 CAD and $6,054 CAD per carat. The same specification in natural form lists at a median of about $43,738 CAD 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. Cushion lab grown stones in the index: 466 USD per carat, -14.7% 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

5,006

Lowest Price

$3,043 CAD

Highest Price

$218,222 CAD

Average Price

$15,449 CAD

Market Intelligence

Retailers Selling

Price Spread

98.8%

Price Range

Price per carat distribution across retailers

$2,987/ct

10th Percentile

$1,063

Median

$2,987

90th Percentile

$6,317

Score Distribution

5.0K diamonds scored across 4 quality tiers

Excellent

1,227 (24.5%)

Very Good

903 (18.0%)

Good

2,129 (42.5%)

Average

747 (14.9%)

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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