2021 Bowman Sterling Prospect Autographs Coby Mayo #BSPA-CMA
2021
$12.97est. value (ungraded)
Prices updated 2026-09-28
Based on recorded sold prices how we price cards
Coby Mayo price history
Recent recorded prices
2 recorded price points for the 2021 Bowman Sterling Prospect Autographs Coby Mayo #BSPA-CMA from our sales and market data.
| Date | Source | Price |
|---|---|---|
| Sep 28, 2026 | Ebay Market | $29.64 |
| Sep 26, 2026 | Recorded sale | $12.97 |
Coby Mayo prices by grade
| Grade | Value | eBay |
|---|---|---|
| Ungraded | $29.64 | Buy on eBay ↗ |
| PSA 8 | $8.27 | Buy on eBay ↗ |
| PSA 9 | $90.98 | Buy on eBay ↗ |
| Grade 9.5 | $47.06 | Buy on eBay ↗ |
| PSA 10 | $99.99 | Buy on eBay ↗ |
| BGS 10 | $71.00 | Buy on eBay ↗ |
| CGC 10 | $33.00 | Buy on eBay ↗ |
| SGC 10 | $67.18 | Buy on eBay ↗ |
Live on eBay
Affiliate — we may earn a commission2021 Bowman Sterling Prospect Autographs Coby Mayo #BSPA-CMA value & prices
The 2021 Bowman Sterling Prospect Autographs Coby Mayo #BSPA-CMA is a Baseball card released in 2021. Ungraded copies carry a market value of about $29.64.
An ungraded copy is worth around $29.64, a PSA 9 around $90.98, a PSA 10 (Gem Mint) around $99.99 and a pristine BGS 10 around $71.00. That's roughly a 3.4× 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 $29.64 and top grades reaching $99.99, 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 2021 Bowman Sterling Prospect Autographs
Other Coby Mayo cards
