2018 Bowman Chrome National Convention Ken Griffey Jr. #BNR-KGJ

2018 Bowman Chrome National Convention Ken Griffey Jr. #BNR-KGJ value & prices

The 2018 Bowman Chrome National Convention Ken Griffey Jr. #BNR-KGJ is a Baseball card released in 2018. Ungraded copies carry a market value of about $15.90.

An ungraded copy is worth around $15.90, a PSA 9 around $15.00, a PSA 10 (Gem Mint) around $111.50 and a pristine BGS 10 around $145.00. That's roughly a 7.0× 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 $15.90 and top grades reaching $111.50, 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.