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1989 Donruss Grand Slammers Jose Canseco [Grand Slammers] #1 #1
1989
See all Jose Canseco [Grand Slammers] #1 cards & values$1.32est. value (ungraded)
Prices updated 2026-10-22
Based on recorded sold prices how we price cards
Price by month
Average price of the 1989 Donruss Grand Slammers Jose Canseco [Grand Slammers] #1 #1 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 | $1.32 | — |
Jose Canseco [Grand Slammers] #1 prices by grade
| Grade | Value | eBay |
|---|---|---|
| Ungraded | $1.32 | Buy on eBay ↗ |
| PSA 8 | $10.19 | Buy on eBay ↗ |
| PSA 9 | $14.50 | Buy on eBay ↗ |
| Grade 9.5 | $16.00 | Buy on eBay ↗ |
| PSA 10 | $73.02 | Buy on eBay ↗ |
| BGS 10 | $95.00 | Buy on eBay ↗ |
| CGC 10 | $44.00 | Buy on eBay ↗ |
| SGC 10 | $44.00 | Buy on eBay ↗ |
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Affiliate — we may earn a commission1989 Donruss Grand Slammers Jose Canseco [Grand Slammers] #1 #1 value & prices
The 1989 Donruss Grand Slammers Jose Canseco [Grand Slammers] #1 #1 is a Baseball card released in 1989. Ungraded copies carry a market value of about $1.32.
An ungraded copy is worth around $1.32, a PSA 9 around $14.50, a PSA 10 (Gem Mint) around $73.02 and a pristine BGS 10 around $95.00. That's roughly a 55× 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 $1.32 and top grades reaching $73.02, 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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