2021 Bowman Chrome Prospect Autographs Brainer Bonaci #CPA-BB
2021
$1.27est. value (ungraded)
Prices updated 2026-10-02
Based on recorded sold prices how we price cards
Recent recorded prices
1 recorded price point for the 2021 Bowman Chrome Prospect Autographs Brainer Bonaci #CPA-BB from our sales and market data.
| Date | Source | Price |
|---|---|---|
| Oct 2, 2026 | Recorded sale | $1.27 |
Brainer Bonaci prices by grade
| Grade | Value | eBay |
|---|---|---|
| Ungraded | $1.27 | Buy on eBay ↗ |
| PSA 8 | $5.97 | Buy on eBay ↗ |
| PSA 9 | $7.00 | Buy on eBay ↗ |
| Grade 9.5 | $7.34 | Buy on eBay ↗ |
| PSA 10 | $9.03 | Buy on eBay ↗ |
| BGS 10 | $12.00 | Buy on eBay ↗ |
| CGC 10 | $5.00 | Buy on eBay ↗ |
| SGC 10 | $5.00 | Buy on eBay ↗ |
Live on eBay
Affiliate — we may earn a commission2021 Bowman Chrome Prospect Autographs Brainer Bonaci #CPA-BB value & prices
The 2021 Bowman Chrome Prospect Autographs Brainer Bonaci #CPA-BB is a Baseball card released in 2021. Ungraded copies carry a market value of about $1.27.
An ungraded copy is worth around $1.27, a PSA 9 around $7.00, a PSA 10 (Gem Mint) around $9.03 and a pristine BGS 10 around $12.00. That's roughly a 7.1× 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?
The spread between raw ($1.27) and top-graded ($9.03) copies is fairly tight, so grading this card only makes financial sense for truly flawless copies — or for collectors who simply prefer slabbed cards for protection and display.
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