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

As of September 2026, 3.00 to 4.99ct D IF lab grown cushion diamonds typically cost €1,865 EUR to €11,143 EUR, with a median price of €4,661 EUR. There are currently 5,161 diamonds matching this specification available across retailers.

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3.00 to 4.99ct D IF Lab Grown Cushion

Quick answer

As of September 2026, there are 5,161 lab grown cushion diamonds with D colour and IF clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run €1,865 EUR to €11,143 EUR, with a median of €4,661 EUR. At least 41 retailers stock this exact specification. Half of all listings fall between €801 EUR and €2,474 EUR per carat. The same specification in natural form lists at a median of about €35,241 EUR 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

5,161

Lowest Price

€900 EUR

Highest Price

€110,842 EUR

Average Price

€6,173 EUR

Market Intelligence

Retailers Selling

Price Spread

130.0%

Price Range

Price per carat distribution across retailers

$1,485/ct

10th Percentile

$709

Median

$1,485

90th Percentile

$3,481

Score Distribution

5.2K diamonds scored across 5 quality tiers

Exceptional

27 (0.5%)

Excellent

1,267 (24.5%)

Very Good

1,810 (35.1%)

Good

1,295 (25.1%)

Average

762 (14.8%)

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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