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Card number
#20
Year
2011
Parallel / variant
Autograph

Justin Harper prices by grade

GradeValueeBay
Ungraded$1.89Buy on eBay ↗
PSA 10$6.28Buy on eBay ↗
BGS 10$8.00Buy on eBay ↗
CGC 10$4.00Buy on eBay ↗
SGC 10$4.00Buy on eBay ↗

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2011 SP Authentic Justin Harper Autograph #20 value & prices

The 2011 SP Authentic Justin Harper Autograph #20 is a Basketball card (Autograph parallel) released in 2011. Ungraded copies carry a market value of about $1.89.

An ungraded copy is worth around $1.89, a PSA 10 (Gem Mint) around $6.28 and a pristine BGS 10 around $8.00. That's roughly a 3.3× premium for a gem-mint copy over raw — one of the clearest signals that condition-sensitive buyers dominate this card's market.

Is it worth grading?

The spread between raw ($1.89) and top-graded ($6.28) copies is fairly tight, so grading this card only makes financial sense for truly flawless copies — or for collectors who simply prefer slabbed cards for protection and display.

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