2023 Topps Chrome Platinum Anniversary Base Set Mike Piazza Blue Mini-Diamond Refractor #439
2023
See all Mike Piazza cards & valuesCommon
$4.24est. value (ungraded)
Prices updated 2026-10-23
Based on recorded sold prices how we price cards
Card number
#439
Year
2023
Parallel / variant
Blue Mini-Diamond Refractor
Mike Piazza price history
$42.67▲ 0.0%
Oct 22 · $42.67 low$42.67 high · Oct 23
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 2023 Topps Chrome Platinum Anniversary Base Set Mike Piazza Blue Mini-Diamond Refractor #439 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
$4.24
Recorded low
$4.24
| Month | Source | Average | Range |
|---|---|---|---|
| Oct 2026 | Market value | $4.24 | — |
Mike Piazza prices by grade
| Grade | Value | eBay |
|---|---|---|
| Ungraded | $4.24 | Buy on eBay ↗ |
| PSA 8 | $8.53 | Buy on eBay ↗ |
| PSA 9 | $15.61 | Buy on eBay ↗ |
| Grade 9.5 | $30.13 | Buy on eBay ↗ |
| PSA 10 | $42.67 | Buy on eBay ↗ |
| BGS 10 | $55.00 | Buy on eBay ↗ |
| CGC 10 | $17.00 | Buy on eBay ↗ |
| SGC 10 | $26.00 | Buy on eBay ↗ |
Other versions of this Mike Piazza card
25 versions, each priced on its own. Most valuable first.
Rose Gold Refractor
$10.00
Not enough history yet
Raw $10.00PSA 9 $23.23PSA 10 $59.86Checked 2026-10-23
Live on eBay
Affiliate — we may earn a commission2023 Topps Chrome Platinum Anniversary Base Set Mike Piazza Blue Mini-Diamond Refractor #439 value & prices
The 2023 Topps Chrome Platinum Anniversary Base Set Mike Piazza Blue Mini-Diamond Refractor #439 is a Baseball card (Blue Mini-Diamond Refractor parallel) released in 2023. Ungraded copies carry a market value of about $4.24.
An ungraded copy is worth around $4.24, a PSA 9 around $15.61, a PSA 10 (Gem Mint) around $42.67 and a pristine BGS 10 around $55.00. That's roughly a 10× 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 ($4.24) and top-graded ($42.67) 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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