2021 Bowman Sterling Prospect Autographs Coby Mayo Speckle Refractor #BSPA-CMA
2021
See all Coby Mayo cards & valuesRare
$25.00est. value (ungraded)
Prices updated 2026-10-24
Based on recorded sold prices how we price cards
Card number
#BSPA-CMA
Year
2021
Parallel / variant
Speckle Refractor
Coby Mayo price history
$165▲ 0.0%
Oct 23 · $165 low$165 high · Oct 24
PSA 10 market value, one reading a day. One-day spikes that reverse the next day are left out.
Price by month
Average price of the 2021 Bowman Sterling Prospect Autographs Coby Mayo Speckle Refractor #BSPA-CMA 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.
Recorded high
$25.00
Recorded low
$25.00
| Month | Source | Average | Range |
|---|---|---|---|
| Oct 2026 | Market value | $25.00 | — |
Coby Mayo prices by grade
| Grade | Value | eBay |
|---|---|---|
| Ungraded | $25.00 | Buy on eBay ↗ |
| PSA 10 | $165.01 | Buy on eBay ↗ |
| BGS 10 | $215.00 | Buy on eBay ↗ |
| CGC 10 | $66.00 | Buy on eBay ↗ |
| SGC 10 | $67.66 | Buy on eBay ↗ |
Other versions of this Coby Mayo card
6 versions, each priced on its own. Most valuable first.
Live on eBay
Affiliate — we may earn a commission2021 Bowman Sterling Prospect Autographs Coby Mayo Speckle Refractor #BSPA-CMA value & prices
The 2021 Bowman Sterling Prospect Autographs Coby Mayo Speckle Refractor #BSPA-CMA is a Baseball card (Speckle Refractor parallel) released in 2021. Ungraded copies carry a market value of about $25.00.
An ungraded copy is worth around $25.00, a PSA 10 (Gem Mint) around $165.01 and a pristine BGS 10 around $215.00. That's roughly a 6.6× 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 $25.00 and top grades reaching $165.01, 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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Coby Mayo2021 Bowman Sterling Prospect Autographs2021Baseball cardsSpeckle RefractorPSA 10BGS 10card valueprice guide