GIA vs IGI: which is better?

Both have their strengths. GIA diamonds have 10,371,946 listings at an average of ￥714,142 JPY/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

GIAとIGIのダイヤモンドの詳細比較：価格、在庫状況、市場データ。

The market currently has 3,593,857 GIA-certified diamonds and 5,927,040 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 を一目で

GIAIGI

カラット当たり平均価格

$4.8K/ct

$1.4K/ct

アクティブな出品

10.4M

18.8M

GIA

labGIA

diamond count3,593,857

総掲載数10,371,946

カラット当たり平均価格￥714,142/ct

IGI

labIGI

diamond count5,927,040

総掲載数18,831,049

カラット当たり平均価格￥214,846/ct

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GIAダイヤモンドを検索 Lucyに相談

世界100社以上の小売業者の価格を比較。理想のダイヤモンドを最安値で見つけましょう。