The 8 Most Valuable Quan Cosby Cards
The most valuable Quan Cosby card is the 2009 SP Rookie Signatures Quan Cosby #RS-QC at $4.95 as of October 22, 2026.
By Ripbin Research · Updated 2026-10-22 · prices from live market data
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Affiliate — we may earn a commissionThe 8 most valuable Quan Cosby cards in the Ripbin catalog (2009–2010) carry a combined raw market value of $16.47, topped by a $4.95 card.
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