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

As of October 2026, 5.00ct+ D FL lab grown marquise diamonds typically cost HK$210,005 HKD to HK$340,232 HKD, with a median price of HK$261,289 HKD. There are currently 5 diamonds matching this specification available across retailers.

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

About 47% of these diamonds are available at multiple retailers, with an average price spread of 51%. A comparison tool like Carat Hunter lets you see all the prices side by side.

5.00ct+ D FL Lab Grown Marquise

Quick answer

As of October 2026, there are 5 lab grown marquise diamonds with D colour and FL clarity in the 5.00ct+ range available across retailers worldwide. Prices typically run HK$210,005 HKD to HK$340,232 HKD, with a median of HK$261,289 HKD. At least 25 retailers stock this exact specification, and 47% of the stones appear at more than one of them, with an average price spread of 51%. Half of all listings fall between HK$35,858 HKD and HK$61,881 HKD per carat. Over the last 30 days the median price moved -5.5% and the number of listings moved +43.0%.

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

Lowest Price

HK$207,341 HKD

Highest Price

HK$7,002,292 HKD

Average Price

HK$821,901 HKD

Market Intelligence

Retailers Selling

Cross Retailer %

47.1%

Price Spread

51.1%

30-Day Price Trend

-5.5%

30-Day Supply Change

+43.0%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$6,489/ct

10th Percentile

$3,237

Median

$6,489

90th Percentile

$9,185

Score Distribution

12 diamonds scored across 2 quality tiers

Excellent

5 (41.7%)

Good

7 (58.3%)

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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