National Grading Institute
The standard for trading card authentication. Every grade is permanent. Every cert is verifiable.
Every card evaluated independently by two certified graders for a final, accurate grade.
Tamper-evident chrome-sealed slabs with QR verification and population registry entry.
Every certified card searchable by cert number, name, or set. Instant verification.
Search by card name, cert number, or set
Browse our full inventory of authenticated, certified graded cards available for purchase on eBay.
View eBay Store →Opens in a new tab · All cards are NGI certified
Built for
Collectors,
By Collectors
National Grading Institute was founded with one purpose: to bring integrity and transparency to the trading card market. We believe every collector deserves a grading service that is honest, consistent, and accessible.
Our team of certified graders evaluates each card using a rigorous four-point system — centering, corners, edges, and surface — to deliver a grade that collectors and investors can trust.
Every card graded to exacting standards with dual-grader verification.
Full public database. Every cert number searchable. No black boxes.
Independent graders, no conflicts of interest, no paid upgrades.