Card number
#99
Year
1998
Keon Clark prices by grade
| Grade | Value | eBay |
|---|---|---|
| Ungraded | $1.47 | Buy on eBay ↗ |
| PSA 8 | $8.04 | Buy on eBay ↗ |
| PSA 9 | $16.13 | Buy on eBay ↗ |
| Grade 9.5 | $29.61 | Buy on eBay ↗ |
| PSA 10 | $64.85 | Buy on eBay ↗ |
| BGS 10 | $84.00 | Buy on eBay ↗ |
| CGC 10 | $39.00 | Buy on eBay ↗ |
| SGC 10 | $39.00 | Buy on eBay ↗ |
Live on eBay
Affiliate — we may earn a commission1998 Upper Deck Black Diamond Keon Clark #99 value & prices
The 1998 Upper Deck Black Diamond Keon Clark #99 is a Basketball card released in 1998. Ungraded copies carry a market value of about $1.47.
An ungraded copy is worth around $1.47, a PSA 9 around $16.13, a PSA 10 (Gem Mint) around $64.85 and a pristine BGS 10 around $84.00. That's roughly a 44× 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 $1.47 and top grades reaching $64.85, 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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