2008 SP Authentic Tim Duncan Copper #21
2008
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Tim Duncan prices by grade
| Grade | Value | eBay |
|---|---|---|
| Ungraded | $69.56 | Buy on eBay ↗ |
| PSA 8 | $86.71 | Buy on eBay ↗ |
| PSA 9 | $140.77 | Buy on eBay ↗ |
| Grade 9.5 | $199.97 | Buy on eBay ↗ |
| PSA 10 | $567.65 | Buy on eBay ↗ |
| BGS 10 | $738.00 | Buy on eBay ↗ |
| CGC 10 | $341.00 | Buy on eBay ↗ |
| SGC 10 | $341.00 | Buy on eBay ↗ |
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Affiliate — we may earn a commission2008 SP Authentic Tim Duncan Copper #21 value & prices
The 2008 SP Authentic Tim Duncan Copper #21 is a Basketball card (Copper parallel) released in 2008. Ungraded copies carry a market value of about $69.56.
An ungraded copy is worth around $69.56, a PSA 9 around $140.77, a PSA 10 (Gem Mint) around $567.65 and a pristine BGS 10 around $738.00. That's roughly a 8.2× 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?
With raw copies near $69.56 and top grades reaching $567.65, grading a sharp copy of this card can clearly pay for itself — the spread comfortably covers a typical ~$25.00 grading fee. The catch: only submit copies with strong centering, clean corners, and unmarked surfaces, because anything below a 9 usually erases the math.
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