2025 Topps Chrome Black Base Set Coby Mayo Gold Mini-Diamond Refractor #27
2025
See all Coby Mayo cards & values$23.12est. value (ungraded)
Prices updated 2026-10-24
Based on recorded sold prices how we price cards
Coby Mayo price history
Ungraded 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 Topps Chrome Black Base Set Coby Mayo Gold Mini-Diamond Refractor #27 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.
| Month | Source | Average | Range |
|---|---|---|---|
| Oct 2026 | Market value | $23.12 | — |
Coby Mayo prices by grade
| Grade | Value | eBay |
|---|---|---|
| Ungraded | $23.12 | Buy on eBay ↗ |
| PSA 9 | $30.00 | Buy on eBay ↗ |
| Grade 9.5 | $33.00 | Buy on eBay ↗ |
Live on eBay
Affiliate — we may earn a commission2025 Topps Chrome Black Base Set Coby Mayo Gold Mini-Diamond Refractor #27 value & prices
The 2025 Topps Chrome Black Base Set Coby Mayo Gold Mini-Diamond Refractor #27 is a Baseball card (Gold Mini-Diamond Refractor parallel) released in 2025. Ungraded copies carry a market value of about $23.12.
An ungraded copy is worth around $23.12 and a PSA 9 around $30.00.
Is it worth grading?
The spread between raw ($23.12) and top-graded ($30.00) 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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