2025 Bowman's Best Best of 2025 Autographs Marcelo Mayer Gold Mini-Diamond Refractor #B25-MMA
2025
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$34.04est. value (ungraded)
Prices updated 2026-10-26
Based on recorded sold prices how we price cards
Card number
#B25-MMA
Year
2025
Parallel / variant
Gold Mini-Diamond Refractor
Marcelo Mayer price history
$177▲ 0.0%
Oct 25 · $177 low$177 high · Oct 26
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 2025 Bowman's Best Best of 2025 Autographs Marcelo Mayer Gold Mini-Diamond Refractor #B25-MMA 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
$34.04
Recorded low
$34.04
| Month | Source | Average | Range |
|---|---|---|---|
| Oct 2026 | Market value | $34.04 | — |
Marcelo Mayer prices by grade
| Grade | Value | eBay |
|---|---|---|
| Ungraded | $34.04 | Buy on eBay ↗ |
| PSA 8 | $35.39 | Buy on eBay ↗ |
| PSA 9 | $62.31 | Buy on eBay ↗ |
| Grade 9.5 | $118.60 | Buy on eBay ↗ |
| PSA 10 | $176.89 | Buy on eBay ↗ |
| BGS 10 | $230.00 | Buy on eBay ↗ |
| CGC 10 | $71.00 | Buy on eBay ↗ |
| SGC 10 | $106.00 | Buy on eBay ↗ |
Other versions of this Marcelo Mayer card
5 versions, each priced on its own. Most valuable first.
Live on eBay
Affiliate — we may earn a commission2025 Bowman's Best Best of 2025 Autographs Marcelo Mayer Gold Mini-Diamond Refractor #B25-MMA value & prices
The 2025 Bowman's Best Best of 2025 Autographs Marcelo Mayer Gold Mini-Diamond Refractor #B25-MMA is a Baseball card (Gold Mini-Diamond Refractor parallel) released in 2025. Ungraded copies carry a market value of about $34.04.
An ungraded copy is worth around $34.04, a PSA 9 around $62.31, a PSA 10 (Gem Mint) around $176.89 and a pristine BGS 10 around $230.00. That's roughly a 5.2× 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 $34.04 and top grades reaching $176.89, 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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Marcelo Mayer2025 Bowman's Best Best of 2025 Autographs2025Baseball cardsGold Mini-Diamond RefractorPSA 10BGS 10card valueprice guide