How much does a 5.00ct+ E IF lab grown marquise diamond cost?

As of October 2026, 5.00ct+ E IF lab grown marquise diamonds typically cost $6,460 USD to $25,016 USD, with a median price of $7,961 USD. There are currently 8 diamonds matching this specification available across retailers.

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

About 46% of these diamonds are available at multiple retailers, with an average price spread of 93%. A comparison tool like Carat Hunter lets you see all the prices side by side.

5.00ct+ E IF Lab Grown Marquise

Quick answer

As of October 2026, there are 8 lab grown marquise diamonds with E color and IF clarity in the 5.00ct+ range available across retailers worldwide. Prices typically run $6,460 USD to $25,016 USD, with a median of $7,961 USD. At least 28 retailers stock this exact specification, and 46% of the stones appear at more than one of them, with an average price spread of 93%. Half of all listings fall between $1,976 USD and $6,348 USD per carat. Over the last 30 days the median price moved -8.5% and the number of listings moved +54.9%.

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. 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

$5,882 USD

Highest Price

$47,642 USD

Average Price

$12,913 USD

Market Intelligence

Retailers Selling

Cross Retailer %

46.0%

Price Spread

93.1%

30-Day Price Trend

-8.5%

30-Day Supply Change

+54.9%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$4,698/ct

10th Percentile

$1,445

Median

$4,698

90th Percentile

$7,787

Score Distribution

21 diamonds scored across 3 quality tiers

Excellent

10 (47.6%)

Very Good

9 (42.9%)

Good

2 (9.5%)

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Consider Instead

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

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

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E VVS1VVS1 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