Slabline™
Graded-card protection score
Enter a cert number — instant, comp-backed value. Free, no account.
Then the question trackers can’t answer: what should you do with it? Which grader pays most · is grading worth it · how protected is it — one 0–1000 Score.
Track values. Show charts. Compare comps. They tell you what a card is worth.
Tells you what to do with it — which grader pays most, whether grading pays off, what you’d actually recover, and what’s at risk in one 0–1000 Score.
PSA · BGS · SGC · CGC side by side — the same Gem 10 can be worth 30% more with the right company.
Real gem-rate odds × the value ladder − fees = your expected grading profit, in actual dollars.
Market value vs. a dealer’s quick-sale offer — the liquidity gap, and why insuring at market matters.
Your raw cards ranked by expected profit — grade the ones that pay off first.
Every answer is built from real comparable sales, gem rate & population, and dealer spreads — across PSA, BGS, SGC & CGC. No other tool puts them together.
Free up to 25 cards · paid plans from $9.99/mo · See plans
