1977 Topps John Gianelli #31

1977 Topps John Gianelli #31 value & prices

The 1977 Topps John Gianelli #31 is a Basketball card released in 1977. Ungraded copies carry a market value of about $1.61.

An ungraded copy is worth around $1.61, a PSA 9 around $29.96, a PSA 10 (Gem Mint) around $196.58 and a pristine BGS 10 around $256.00. That's roughly a 122× 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 $1.61 and top grades reaching $196.58, 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.