Slabline™
Graded-card protection score
Slabline™All graded cards →What a PSA 8 is worth — from its recorded sales.
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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 1951 Bowman Mickey Mantle #253 is worth about $400,000, the median of its 5 most recent recorded PSA 8 sales. Slabline holds 15 recorded PSA 8 sales of this card between December 2016 and August 2026; the most recent sold for $390,400 on August 21, 2026. At other grades it is valued at about $12,588 (Raw / Ungraded), $43,000 (Grade 7), $422,602 (Grade 9).
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How much the 1951 Bowman Mickey Mantle #253 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 | $12,588 | guide, rescaled to sales |
| Grade 7 | $43,000 | 5 recorded sales |
| Grade 8 | $400,000 | 5 recorded sales |
| Grade 9 | $422,602 | guide, rescaled to sales |
| Grade 9.5 | $865,943 | guide, rescaled to sales |
| Gem Mint 10 | $3,162,732 | guide, rescaled to sales |
Price guide data: SportsCardsPro
Price checked today · last recorded sale 3 months ago (PSA 8) · 4 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 $400,000 card: a standard homeowners policy typically pays a few hundred dollars for stolen collectibles — and nothing at all for flood.
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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.