1998 Upper Deck Black Diamond Charles Barkley #40

1998 Upper Deck Black Diamond Charles Barkley #40 value & prices

The 1998 Upper Deck Black Diamond Charles Barkley #40 is a Basketball card released in 1998. Ungraded copies carry a market value of about $4.13.

An ungraded copy is worth around $4.13, a PSA 9 around $63.16, a PSA 10 (Gem Mint) around $76.00 and a pristine BGS 10 around $99.00. That's roughly a 18× 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 $4.13 and top grades reaching $76.00, 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.