Slabline™
Graded-card protection score
Slabline™All graded cards →What a PSA 8 is worth — price-guide estimate, with every recorded sale we hold.
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eBay, Fanatics Collect, Alt, MySlabs, Goldin and Heritage records arrive through CardHedge's licensed feed; REA, SCP and Huggins & Scott are read from each house's published prices realized. More eBay, Goldin and auction sales come from The Card API.
Sales seen on eBay, Fanatics Collect, Goldin, Heritage, Alt and MySlabs, via CardHedge. "Marketplace" is a real CardHedge sale whose venue is not identified yet.
A PSA 8 1979 O-Pee-Chee Wayne Gretzky #18 is valued at about $20,740, a price-guide estimate rather than a recorded-sales median. Its 50 recorded PSA 8 sales in the last year ranged from $2,451 to $24,000; they have not yet passed Slabline's checks (a sharp price move, a wide spread, or possibly another printing's sales), so the value shown stays on the price guide until they do. At other grades it is valued at about $822 (Raw / Ungraded), $3,900 (Grade 7), $75,760 (Grade 9).
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How much the 1979 O-Pee-Chee Wayne Gretzky #18 is worth at each grade.
How to read this page: an estimate is Slabline's figure for a grade, built from the source named beside it. An observed price is the latest price a grader's copy of this card fetched, one cell per grader and grade in the grid below. A recorded sale is a dated transaction with its venue. The headline above is the estimate for this slab's own grade.
| Grade | Value | Built from |
|---|---|---|
| Raw / Ungraded | $822 | price guide |
| Grade 7 | $3,900 | 60 recorded sales |
| Grade 8 | $20,740 | price guide |
| Grade 9 | $75,760 | price guide |
| Grade 9.5 | $83,335 | price guide |
| Gem Mint 10 | $2,046,432 | price guide |
Price guide data: SportsCardsPro
Price checked today · last recorded sale 2 days ago (PSA 8) · 73 sales in the last 90 days (all grades)
A dealer typically pays about 60% of market for a fast, guaranteed sale — the rest is the liquidity gap. An auction or private sale can recover more but takes time and fees. It’s why your Slabline Score weighs liquidity — and why insuring at market matters: a fire-sale recovers far less than the number you’re covered for.
Estimated from dealer buy-vs-sell spreads; actual offers vary by condition and demand.
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If you own this $20,740 card: a standard homeowners policy typically pays a few hundred dollars for stolen collectibles — and nothing at all for flood.
See what you'd actually get back →Prefilled with $20,740 · 20 seconds · no account
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Add to my collection — free →Values are informational estimates built from recent comparable sales — not a certified appraisal, insurance, or financial advice. Card values fluctuate; figures are a snapshot and may differ from a realized sale.