Can I grade my own comic books?

Updated October 2026 · How we answer

Short answerYes, you can grade your own comics for personal use, but only professional grading services like CGC or CBCS provide grades that are widely recognized for resale value.

Self-Grading vs. Professional Grading

Self-grading means you assess a comic's condition using industry standards like the Overstreet Grading Guide. This is free and fine for organizing your collection or deciding whether to submit a book for professional grading.

However, self-grades are not accepted by most buyers or sellers in the marketplace. For a grade to carry weight in a sale, it must come from a third-party grading company such as CGC (Certified Guaranty Company) or CBCS (Comic Book Certification Service).

Professional grading involves encapsulation (slabbing) and a numeric grade from 0.5 to 10.0. It costs money—typically $20 to $100+ per comic depending on turnaround time and declared value—and takes weeks or months.

When Self-Grading Makes Sense

If you're just curious about your collection's condition or want to decide which books are worth submitting, self-grading is a smart first step. You can learn the basics from free online guides and the Overstreet guide.

For high-value comics (say, worth over $100 raw), professional grading often pays for itself by making the book easier to sell and reducing buyer skepticism. For common books worth a few dollars, self-grading is usually enough.

Keep in mind that even experienced graders disagree by a half-point or more. Your self-grade is an estimate, not a guarantee.

  • Use the Overstreet Grading Guide for standard definitions.
  • Practice on low-value books before grading your keys.
  • Consider professional grading only for books worth $100+ raw.
  • Remember: self-grades don't add resale value.

Common mistakes

  • Thinking your self-grade will be accepted by buyers as if it were professional.
  • Assuming professional grading always increases a comic's value—it can cost more than the book is worth.
  • Overgrading because you're emotionally attached to your own comics.
From our shopsCryptid Field Unit: Mothman and Bigfoot field-journal cases.