GIA vs IGI: which is better?

Both have their strengths. GIA diamonds have 8,615,571 listings at an average of £4,344 GBP/ct. The best choice depends on your priorities for cut quality, budget, and personal preference.

What is the price difference between GIA and IGI diamonds?

Price differences between GIA and IGI diamonds vary by quality grade and carat weight.

GIA vs IGI

Detailed comparison of GIA and IGI diamonds: pricing, availability, and market data.

The market currently has 2,742,428 GIA-certified diamonds and 6,861,561 IGI-certified diamonds tracked across all retailers. IGI certification has grown significantly, particularly in the lab-grown segment where it is the dominant grading lab.

GIA vs IGI at a glance

GIAIGI

Avg price per ct

$5.5K/ct

$1.6K/ct

Active listings

8.6M

16.9M

GIA

labGIA

diamond count2,742,428

Total Listings8,615,571

Avg. Price per Carat£4,344/ct

IGI

labIGI

diamond count6,861,561

Total Listings16,895,040

Avg. Price per Carat£1,295/ct

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