1997 Stadium Club Members Only 55 Ken Griffey, Jr. #20
1997
See all Ken Griffey, Jr. cards & values1997 seasonSeattle MarinersKen Griffey Jr. career & card values
$19.99est. value (ungraded)
Prices updated 2026-10-22
Based on recorded sold prices how we price cards
Price by month
Average price of the 1997 Stadium Club Members Only 55 Ken Griffey, Jr. #20 each month, from 1 recorded price reading. Prices are re-checked regularly; a month's average counts each day from that month's first reading at the price that held that day.
| Month | Source | Average | Range |
|---|---|---|---|
| Oct 2026 | Market value | $19.99 | — |
Ken Griffey, Jr. prices by grade
| Grade | Value | eBay |
|---|---|---|
| Ungraded | $19.99 | Buy on eBay ↗ |
| PSA 8 | $48.79 | Buy on eBay ↗ |
| PSA 9 | $52.19 | Buy on eBay ↗ |
| Grade 9.5 | $162.44 | Buy on eBay ↗ |
| PSA 10 | $549.39 | Buy on eBay ↗ |
| BGS 10 | $714.00 | Buy on eBay ↗ |
| CGC 10 | $330.00 | Buy on eBay ↗ |
| SGC 10 | $330.00 | Buy on eBay ↗ |
Live on eBay
Affiliate — we may earn a commission1997 Stadium Club Members Only 55 Ken Griffey, Jr. #20 value & prices
The 1997 Stadium Club Members Only 55 Ken Griffey, Jr. #20 is a Baseball card released in 1997. Ungraded copies carry a market value of about $19.99.
An ungraded copy is worth around $19.99, a PSA 9 around $52.19, a PSA 10 (Gem Mint) around $549.39 and a pristine BGS 10 around $714.00. That's roughly a 27× 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 $19.99 and top grades reaching $549.39, 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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