How much does a 0.50 to 0.74ct E IF lab grown marquise diamond cost?

As of October 2026, 0.50 to 0.74ct E IF lab grown marquise diamonds typically cost €181 EUR to €853 EUR, with a median price of €524 EUR. There are currently 34 diamonds matching this specification available across retailers.

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

About 38% of these diamonds are available at multiple retailers, with an average price spread of 92%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.50 to 0.74ct E IF Lab Grown Marquise

Quick answer

As of October 2026, there are 34 lab grown marquise diamonds with E colour and IF clarity in the 0.50 to 0.74ct range available across retailers worldwide. Prices typically run €181 EUR to €853 EUR, with a median of €524 EUR. At least 44 retailers stock this exact specification, and 38% of the stones appear at more than one of them, with an average price spread of 92%. Half of all listings fall between €488 EUR and €1,222 EUR per carat. The same specification in natural form lists at a median of about €2,464 EUR per carat. Over the last 30 days the median price moved -0.9% and the number of listings moved +9.9%.

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

€92 EUR

Highest Price

€2,086 EUR

Average Price

€500 EUR

Market Intelligence

Retailers Selling

Cross Retailer %

38.2%

Price Spread

92.0%

30-Day Price Trend

-0.9%

30-Day Supply Change

+9.9%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$891/ct

10th Percentile

$364

Median

$891

90th Percentile

$1,852

Score Distribution

117 diamonds scored across 4 quality tiers

Excellent

34 (29.1%)

Very Good

16 (13.7%)

Good

33 (28.2%)

Average

34 (29.1%)

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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