The 6 Most Valuable Gregg Guenther Cards
The most valuable Gregg Guenther card is the 2005 Leaf Rookies & Stars Longevity Gregg Guenther Holofoil #199 at $7.37 as of October 19, 2026.
By Ripbin Research · Updated 2026-10-19 · prices from live market data
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Affiliate — we may earn a commissionThe 6 most valuable Gregg Guenther cards in the Ripbin catalog (2005) carry a combined raw market value of $11.97, topped by a $7.37 card.
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