GIA vs IGI: which is better?

Both have their strengths. GIA diamonds have 7,425,440 listings at an average of $8,880 NZD/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 2,738,181 GIA-certified diamonds and 5,195,319 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

$5.3K/ct

$1.5K/ct

Active listings

7.4M

13.5M

GIA

labGIA

diamond count2,738,181

Total Listings7,425,440

Avg. Price per Carat$8,880/ct

IGI

labIGI

diamond count5,195,319

Total Listings13,536,497

Avg. Price per Carat$2,505/ct

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