How much does a 3.00 to 4.99ct E FL lab grown marquise diamond cost?

As of September 2026, 3.00 to 4.99ct E FL lab grown marquise diamonds typically cost HK$35,992 HKD to HK$119,767 HKD, with a median price of HK$79,841 HKD. There are currently 107 diamonds matching this specification available across retailers.

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

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3.00 to 4.99ct E FL Lab Grown Marquise

Quick answer

As of September 2026, there are 107 lab grown marquise diamonds with E colour and FL clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run HK$35,992 HKD to HK$119,767 HKD, with a median of HK$79,841 HKD. At least 28 retailers stock this exact specification. Half of all listings fall between HK$16,090 HKD and HK$36,540 HKD per carat. The same specification in natural form lists at a median of about HK$274,932 HKD 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. Marquise lab grown stones in the index: 500 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

107

Lowest Price

HK$25,361 HKD

Highest Price

HK$447,890 HKD

Average Price

HK$83,061 HKD

Market Intelligence

Retailers Selling

Price Spread

83.5%

Price Range

Price per carat distribution across retailers

$3,122/ct

10th Percentile

$1,414

Median

$3,122

90th Percentile

$6,974

Score Distribution

107 diamonds scored across 4 quality tiers

Excellent

29 (27.1%)

Very Good

31 (29.0%)

Good

22 (20.6%)

Average

25 (23.4%)

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Consider Instead

Save money without compromising on what matters. These alternatives are visually similar but cost less.

F FLF colour is visually identical to E to the naked eye

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E IFIF inclusions are not visible without magnification

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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