2025-26 Bowman University Best Iso Signatures Madison Booker Black Refractor #IS-MO

2025-26 Bowman University Best Iso Signatures Madison Booker Black Refractor #IS-MO value & prices

The 2025-26 Bowman University Best Iso Signatures Madison Booker Black Refractor #IS-MO is a Basketball card (Black Refractor parallel) released in 2026. Ungraded copies carry a market value of about $15.59.

An ungraded copy is worth around $15.59, a PSA 9 around $35.76, a PSA 10 (Gem Mint) around $103.67 and a pristine BGS 10 around $135.00. That's roughly a 6.6× 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 $15.59 and top grades reaching $103.67, 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.