How much does a 3.00 to 4.99ct G IF lab grown marquise diamond cost?

As of November 2026, 3.00 to 4.99ct G IF lab grown marquise diamonds typically cost €3,643 EUR to €10,501 EUR, with a median price of €5,155 EUR. There are currently 2 diamonds matching this specification available across retailers.

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

About 47% of these diamonds are available at multiple retailers, with an average price spread of 99%. A comparison tool like Carat Hunter lets you see all the prices side by side.

3.00 to 4.99ct G IF Lab Grown Marquise

Quick answer

As of November 2026, there are 2 lab grown marquise diamonds with G colour and IF clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run €3,643 EUR to €10,501 EUR, with a median of €5,155 EUR. At least 31 retailers stock this exact specification, and 47% of the stones appear at more than one of them, with an average price spread of 99%. Half of all listings fall between €518 EUR and €1,391 EUR per carat. The same specification in natural form lists at a median of about €19,750 EUR per carat. Over the last 30 days the median price moved -14.9% and the number of listings moved +48.3%.

Three of the best scored stones at this specification right now:

Caratlytics Diamond Price Index, October 2026: natural diamonds at 2,202 USD per carat and lab-grown at 462 USD per carat, a natural to lab ratio of 4.8 to 1. Marquise lab grown stones in the index: 505 USD per carat, +1.6% 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: November 2026

Available

Lowest Price

€3,305 EUR

Highest Price

€12,360 EUR

Average Price

€6,461 EUR

Market Intelligence

Retailers Selling

Cross Retailer %

46.9%

Price Spread

99.3%

30-Day Price Trend

-14.9%

30-Day Supply Change

+48.3%

Volatility (30d)

0.07

Price Range

Price per carat distribution across retailers

$983/ct

10th Percentile

$403

Median

$983

90th Percentile

$2,154

Score Distribution

7 diamonds scored across 3 quality tiers

Very Good

1 (14.3%)

Good

3 (42.9%)

Average

3 (42.9%)

Find Your Diamond

Search 2 G IF marquise diamonds and compare prices.

Search Diamonds

Consider Instead

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

G VVS1VVS1 inclusions are not visible without magnification

Save 42%

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