GIA vs IGI: which is better?

Both have their strengths. GIA diamonds have 14,522,975 listings at an average of £3,679 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 3,871,281 GIA-certified diamonds and 5,904,236 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

$4.9K/ct

$1.3K/ct

Active listings

14.5M

27.2M

GIA

labGIA

diamond count3,871,281

Total Listings14,522,975

Avg. Price per Carat£3,679/ct

IGI

labIGI

diamond count5,904,236

Total Listings27,157,776

Avg. Price per Carat£985/ct

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