When a collector or dealer quotes you a price for a comic book, they're assuming a specific condition. A book quoted at $200 in "Very Fine/Near Mint" (VF/NM) might be worth $40 in "Very Good" (VG) and $400+ in "Near Mint Minus" (NM–). Understanding the grading scale is essential before you sell.
The 0.5 to 10.0 Scale
The industry-standard numerical grading scale runs from 0.5 (Poor/Fair) to 10.0 (Gem Mint). CGC (Certified Guaranty Company) popularized the scale, which maps roughly to descriptive grades as follows:
- 10.0 — Gem Mint: Essentially perfect. Extremely rare.
- 9.8 — Near Mint/Mint: Near perfect with only the most minor of defects. The benchmark for modern-era slabs.
- 9.6 — Near Mint+: Extremely well preserved with a small, barely noticeable flaw.
- 9.4 — Near Mint: Off-white pages, slight spine stress marks, very minor corner blunts.
- 9.2 — Near Mint–: White pages, small accumulation of minor flaws.
- 8.0 — Very Fine: Bright, glossy cover with minor wear showing.
- 6.0 — Fine: Slightly worn book with minor wear, good eye appeal.
- 4.0 — Very Good: Worn with some minor creases and folds.
- 2.0 — Good: Major defects present but still complete and readable.
- 0.5 — Poor: Heavily damaged but still identifiable.
What Our AI Grades For
Our AI grading system evaluates condition from cover photographs, assessing: spine stress lines, corner blunts, color fading, surface creases, staple rust, tanning (page browning), and tears. Because we're working from photos rather than physical inspection, our grades are expressed as a range (e.g., 6.0–7.0) with a confidence score. In-person inspection before finalizing any offer may adjust the grade slightly in either direction.
How Storage Affects Grade
Storage conditions have a huge impact on a book's current grade versus its theoretical original grade. A book stored in a mylar bag with a backing board in a climate-controlled space can hold its grade for decades. The same book stored loose in a cardboard box in a damp basement will degrade — sometimes dramatically — over time.
This is why our seller questionnaire asks about storage type and location. A well-stored collection in high-grade condition is worth significantly more than the same titles stored poorly, even when the raw difference in condition is only one or two grade points.
Should You Get Books Graded Before Selling?
Professional slabbing (CGC or CBCS grading) adds $25–$75 per book and takes weeks or months. For books with a raw value above $200–$300, it can be worth it to maximize sale price. For a collection being sold wholesale to a buyer like us, it's rarely necessary — we price our offers to account for unslabbed books, and we handle any subsequent certification internally.
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