「グレサで鑑定」グレサ×PSAOFFICIAL DEALER認定記念 鑑定料価格DOWN！ PAGE-ONER株式会社(所在地：東京都新宿区）が運営する日本コレクターのトレーディングカードのBGS・PSA鑑定や日本セラーの「eBay（イーベイ）」をはじめとした海外販売をサポートする「Grading ...

Oh! card grading in Japan, where rare and valuable cards are assessed for condition, authenticity, and overall value. This ...

The major trading card authenticators graded more than 26 million cards in 2025, according to year-end data released by ...

As prices for rare Pokemon and sports trading cards soar, collectors are turning to "pre-graders" to decide which cards are ...

According to Gemrate and data from November of 2025, Professional Sports Authenticator (PSA) graded 1.66 million cards.

December, Collectors announced that it had acquired Beckett. It was one grading service purchasing another grading service.