1999 SP Authentic Mike Piazza #134
1999
See all Mike Piazza cards & values1999 seasonNew York MetsMike Piazza career & card values
$3.40est. value (ungraded)
Prices updated 2026-10-22
Based on recorded sold prices how we price cards
Price by month
Average price of the 1999 SP Authentic Mike Piazza #134 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 | $3.40 | — |
Mike Piazza prices by grade
| Grade | Value | eBay |
|---|---|---|
| Ungraded | $3.40 | Buy on eBay ↗ |
| PSA 10 | $26.00 | Buy on eBay ↗ |
| BGS 10 | $34.00 | Buy on eBay ↗ |
| CGC 10 | $16.00 | Buy on eBay ↗ |
| SGC 10 | $16.00 | Buy on eBay ↗ |
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Affiliate — we may earn a commission1999 SP Authentic Mike Piazza #134 value & prices
The 1999 SP Authentic Mike Piazza #134 is a Baseball card released in 1999. Ungraded copies carry a market value of about $3.40.
An ungraded copy is worth around $3.40, a PSA 10 (Gem Mint) around $26.00 and a pristine BGS 10 around $34.00. That's roughly a 7.6× 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?
The spread between raw ($3.40) and top-graded ($26.00) 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.