2014 Bowman 1989 Is Back Silver Diamond Refractor Greg Maddux #GM
2014
See all Greg Maddux cards & values$1.51est. value (ungraded)
Prices updated 2026-10-22
Based on recorded sold prices how we price cards
Price by month
Average price of the 2014 Bowman 1989 Is Back Silver Diamond Refractor Greg Maddux #GM 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 | $1.51 | — |
Greg Maddux prices by grade
| Grade | Value | eBay |
|---|---|---|
| Ungraded | $1.51 | Buy on eBay ↗ |
| PSA 8 | $6.27 | Buy on eBay ↗ |
| PSA 9 | $11.67 | Buy on eBay ↗ |
| Grade 9.5 | $22.18 | Buy on eBay ↗ |
| PSA 10 | $39.30 | Buy on eBay ↗ |
| BGS 10 | $51.00 | Buy on eBay ↗ |
| CGC 10 | $24.00 | Buy on eBay ↗ |
| SGC 10 | $24.00 | Buy on eBay ↗ |
Live on eBay
Affiliate — we may earn a commission2014 Bowman 1989 Is Back Silver Diamond Refractor Greg Maddux #GM value & prices
The 2014 Bowman 1989 Is Back Silver Diamond Refractor Greg Maddux #GM is a Baseball card released in 2014. Ungraded copies carry a market value of about $1.51.
An ungraded copy is worth around $1.51, a PSA 9 around $11.67, a PSA 10 (Gem Mint) around $39.30 and a pristine BGS 10 around $51.00. That's roughly a 26× 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 ($1.51) and top-graded ($39.30) 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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