1934 Diamond Stars Roy Mahaffey #10
1934
$20.75est. value (ungraded)
Prices updated 2026-10-16
Based on recorded sold prices how we price cards
Recent recorded prices
1 recorded price point for the 1934 Diamond Stars Roy Mahaffey #10 from our sales and market data.
| Date | Source | Price |
|---|---|---|
| Oct 16, 2026 | Market value | $20.75 |
Roy Mahaffey prices by grade
| Grade | Value | eBay |
|---|---|---|
| Ungraded | $20.75 | Buy on eBay ↗ |
| PSA 7 | $202.50 | Buy on eBay ↗ |
| PSA 8 | $1,440.00 | Buy on eBay ↗ |
| PSA 9 | $1,584.00 | Buy on eBay ↗ |
| Grade 9.5 | $2,269.72 | Buy on eBay ↗ |
| PSA 10 | $8,183.57 | Buy on eBay ↗ |
| BGS 10 | $10,639.00 | Buy on eBay ↗ |
| CGC 10 | $4,910.00 | Buy on eBay ↗ |
| SGC 10 | $4,910.00 | Buy on eBay ↗ |
Live on eBay
Affiliate — we may earn a commission1934 Diamond Stars Roy Mahaffey #10 value & prices
The 1934 Diamond Stars Roy Mahaffey #10 is a Baseball card released in 1934. Ungraded copies carry a market value of about $20.75.
An ungraded copy is worth around $20.75, a PSA 9 around $1,584.00, a PSA 10 (Gem Mint) around $8,183.57, a pristine BGS 10 around $10 and639.00. That's roughly a 394× 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 $20.75 and top grades reaching $8,183.57, 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.
More from 1934 Diamond Stars
