How much does a 5.00ct+ D FL lab grown cushion diamond cost?

As of October 2026, 5.00ct+ D FL lab grown cushion diamonds typically cost €5,932 EUR to €31,316 EUR, with a median price of €15,263 EUR. There are currently 312 diamonds matching this specification available across retailers.

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

About 40% of these diamonds are available at multiple retailers, with an average price spread of 50%. A comparison tool like Carat Hunter lets you see all the prices side by side.

5.00ct+ D FL Lab Grown Cushion

Quick answer

As of October 2026, there are 312 lab grown cushion diamonds with D colour and FL clarity in the 5.00ct+ range available across retailers worldwide. Prices typically run €5,932 EUR to €31,316 EUR, with a median of €15,263 EUR. At least 6 retailers stock this exact specification, and 40% of the stones appear at more than one of them, with an average price spread of 50%. Half of all listings fall between €3,969 EUR and €7,794 EUR per carat. Over the last 30 days the median price moved +5.2% and the number of listings moved +16.9%.

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. Cushion lab grown stones in the index: 516 USD per carat, +6.9% 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

312

Lowest Price

€5,474 EUR

Highest Price

€79,198 EUR

Average Price

€17,528 EUR

Market Intelligence

Retailers Selling

Cross Retailer %

40.0%

Price Spread

49.7%

30-Day Price Trend

+5.2%

30-Day Supply Change

+16.9%

Volatility (30d)

0.04

Price Range

Price per carat distribution across retailers

$8,603/ct

10th Percentile

$4,193

Median

$8,603

90th Percentile

$8,830

Score Distribution

820 diamonds scored across 5 quality tiers

Exceptional

38 (4.6%)

Excellent

235 (28.7%)

Very Good

101 (12.3%)

Good

395 (48.2%)

Average

51 (6.2%)

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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