Skip to main content

Grading & authentication

How are comics graded? The 10-point scale explained

Published Sep 14, 2026 · Updated Sep 14, 2026 · 2 min read

Short answerComics are graded on a 10-point scale that runs from 0.5 (Poor) to 10.0 (Gem Mint), with 25 steps in between. Graders assess the book's structure, surface, spine, corners, page quality and completeness, then assign the highest grade the worst significant defect allows. CGC and CBCS both use this scale, which comes from the Overstreet grading standard.

The scale

The modern scale has 25 grades. Each numeric grade has a traditional name that older price guides and dealers still use:

GradeNameWhat it looks like
10.0Gem MintPerfect in every respect; extraordinarily rare
9.9MintA virtually perfect copy with a single minute flaw
9.8Near Mint / MintNearly perfect: sharp corners, tight spine, gloss intact
9.6Near Mint +Almost imperceptible defects
9.4Near MintMinor wear you have to look for
9.2Near Mint −A few small defects, still a very attractive copy
9.0Very Fine / Near MintLight wear, flat and bright
8.5 – 7.5Very Fine rangeLight handling: minor spine stress, small corner blunting
7.0 – 5.5Fine rangeClearly read but well kept; some creasing and edge wear
5.0 – 3.5Very Good rangeObvious wear, spine rolls, small tears, but complete
3.0 – 1.8Good rangeHeavy wear, creases, tears, possibly a detached staple
1.5 – 1.0FairSoiled, torn, possibly missing small pieces
0.5PoorHeavily damaged, possibly incomplete but still identifiable

What graders look at

A grader examines the book in a fixed order so nothing is missed:

  1. Completeness and authenticity. Every page, coupon and insert must be present. Married covers, replaced pages and counterfeits are caught here.
  2. Restoration check. Colour touch, tear seals, trimming and cleaning are searched for under magnification and ultraviolet light. Any restoration found changes the label, not just the grade.
  3. Structure. Spine stress, spine roll, staple condition, detached covers or pages.
  4. Surface. Creases, dents, scuffs, foxing, fading, stains, writing.
  5. Edges and corners. Blunting, chipping, tears.
  6. Page quality. Assessed separately and printed on the label; it does not change the number but it strongly affects price.

The grade is not an average. A single serious defect caps the grade even if the rest of the book is immaculate — a 2-inch spine split keeps a book out of the Very Fine range no matter how bright the cover is.

Why two graders can disagree

Grading is expert judgement applied to a standard, not a measurement. Companies calibrate their graders against each other and use multiple graders per book, but a copy on the border between 9.4 and 9.6 can come back either way. This is why the same book resubmitted sometimes moves a step, and why pressing before submission is so common: it removes bends and dents that would otherwise decide the grade.

What the grade does not tell you

  • Page quality is separate. Two 8.0 copies can have white and cream pages respectively, and the white-paged copy is worth more.
  • Eye appeal — centering, cover gloss, colour strike — is only partly captured by the number. Always look at the scan.
  • Provenance and pedigree collections are noted on the label but do not change the grade.

For the meaning of each label colour see What do CGC label colours mean?.

Frequently asked

Is 9.8 the highest grade you can realistically get?
For most books, yes. 9.9 and 10.0 are assigned to a tiny fraction of submissions, and for many Silver and Bronze Age issues no 10.0 exists on the census at all. 9.8 is the top of the market for the vast majority of comics.
Do CGC and CBCS grade to the same scale?
Both use the 10-point Overstreet scale and their grades are broadly comparable, although each company has its own graders and internal standards. Buyers generally treat a CGC 9.8 and a CBCS 9.8 as the same grade, with CGC slabs commanding a modest premium in many segments because of the larger census and resale market.

Written by the Rare Comics Collectors grading team. Spotted an error or have a question this guide does not answer? Tell us.

  • Grading

    What is a CGC graded comic?

    A CGC graded comic is a comic book that Certified Guaranty Company (CGC) has examined, assigned a numeric grade from 0.5 to 10.0, and sealed in a tamper-evident plastic holder with a label that records the grade, the page quality and any restoration. The holder and label let a buyer trust the condition without opening the book.

    Updated Sep 14, 2026

  • Grading

    CGC vs CBCS: what is the difference?

    CGC (founded 2000) and CBCS (founded 2014) are the two main third-party comic grading companies in the United States. Both grade on the same 10-point scale and encapsulate books in tamper-evident holders. CGC has the larger census and the deeper resale market, so its slabs often carry a modest premium; CBCS is known for its signature verification, which authenticates signatures after the fact rather than requiring a witness.

    Updated Sep 14, 2026

  • Grading

    What do CGC label colours mean?

    The colour of a CGC label tells you what kind of grade you are looking at before you read a word: blue (Universal) means an unrestored book graded on its own merits, yellow (Signature Series) means a signature witnessed by CGC, purple (Restored) means the book has been repaired or altered, and green (Qualified) means one significant defect has been set aside from the grade.

    Updated Sep 14, 2026

  • Grading

    What is a Signature Series comic?

    A Signature Series comic is a book that was signed by a creator or celebrity in front of a CGC-authorised witness and then graded and sealed with a yellow label naming the signer. Because the signing was witnessed, the signature is guaranteed authentic without any later analysis. CBCS's equivalent is the yellow Verified Signature label.

    Updated Sep 14, 2026

  • Grading

    What does “restored” mean on a comic label?

    A restored comic has been repaired or altered to improve its appearance: colour touch to hide wear, tears sealed with glue, missing pieces replaced, edges trimmed, chemical cleaning, re-glossing or pages married in from another copy. CGC and CBCS disclose restoration on a purple label with the extent and quality of the work, and restored copies sell at a steep discount to unrestored copies of the same grade.

    Updated Sep 14, 2026

  • Grading

    What is page quality on a graded comic, and why does it matter?

    Page quality describes the colour of a comic's interior paper, from White through Off-White, Cream and Tan to Brittle. It is printed on the grading label separately from the numeric grade. Whiter pages mean the paper has aged less, so between two copies with the same grade the one with whiter pages is worth more and is a safer long-term hold.

    Updated Sep 14, 2026