How much does a 5.00ct+ G IF lab grown radiant diamond cost?

As of September 2026, 5.00ct+ G IF lab grown radiant diamonds typically cost €2,846 EUR to €18,953 EUR, with a median price of €10,984 EUR. There are currently 17 diamonds matching this specification available across retailers.

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

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5.00ct+ G IF Lab Grown Radiant

Quick answer

As of September 2026, there are 17 lab grown radiant diamonds with G colour and IF clarity in the 5.00ct+ range available across retailers worldwide. Prices typically run €2,846 EUR to €18,953 EUR, with a median of €10,984 EUR. At least 26 retailers stock this exact specification. Half of all listings fall between €1,286 EUR and €2,789 EUR per carat. The same specification in natural form lists at a median of about €23,647 EUR 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. Radiant lab grown stones in the index: 473 USD per carat, -12.5% 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

Lowest Price

€2,113 EUR

Highest Price

€52,535 EUR

Average Price

€10,991 EUR

Market Intelligence

Retailers Selling

Price Spread

87.8%

Price Range

Price per carat distribution across retailers

$1,975/ct

10th Percentile

$1,022

Median

$1,975

90th Percentile

$4,546

Score Distribution

17 diamonds scored across 4 quality tiers

Excellent

7 (41.2%)

Very Good

3 (17.6%)

Good

5 (29.4%)

Average

2 (11.8%)

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H IFH colour is visually identical to G to the naked eye

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G 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