1979 Topps Mariners 1979 Prospects #712
1979
$1.50est. value (ungraded)
Prices updated 2026-10-18
Based on recorded sold prices how we price cards
Recent recorded prices
1 recorded price point for the 1979 Topps Mariners 1979 Prospects #712 from our sales and market data.
| Date | Source | Price |
|---|---|---|
| Oct 18, 2026 | Market value | $1.50 |
Mariners 1979 Prospects prices by grade
| Grade | Value | eBay |
|---|---|---|
| Ungraded | $1.50 | Buy on eBay ↗ |
| PSA 10 | $150.00 | Buy on eBay ↗ |
| BGS 10 | $195.00 | Buy on eBay ↗ |
| CGC 10 | $90.00 | Buy on eBay ↗ |
| SGC 10 | $90.00 | Buy on eBay ↗ |
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Affiliate — we may earn a commission1979 Topps Mariners 1979 Prospects #712 value & prices
The 1979 Topps Mariners 1979 Prospects #712 is a Baseball card released in 1979. Ungraded copies carry a market value of about $1.50.
An ungraded copy is worth around $1.50, a PSA 10 (Gem Mint) around $150.00 and a pristine BGS 10 around $195.00. That's roughly a 100× 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 $1.50 and top grades reaching $150.00, 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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