2023 Bowman's Best Base Set Bryce Harper Green Mini Diamond #4
2023
See all Bryce Harper cards & values2023 seasonPhiladelphia PhilliesBryce Harper career & card values
$9.23est. value (ungraded)
Prices updated 2026-10-24
Based on recorded sold prices how we price cards
Price by month
Average price of the 2023 Bowman's Best Base Set Bryce Harper Green Mini Diamond #4 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 | $9.23 | — |
Bryce Harper prices by grade
| Grade | Value | eBay |
|---|---|---|
| Ungraded | $9.23 | Buy on eBay ↗ |
| PSA 8 | $11.75 | Buy on eBay ↗ |
| PSA 10 | $100.00 | Buy on eBay ↗ |
| BGS 10 | $130.00 | Buy on eBay ↗ |
| CGC 10 | $60.00 | Buy on eBay ↗ |
| SGC 10 | $60.00 | Buy on eBay ↗ |
Live on eBay
Affiliate — we may earn a commission2023 Bowman's Best Base Set Bryce Harper Green Mini Diamond #4 value & prices
The 2023 Bowman's Best Base Set Bryce Harper Green Mini Diamond #4 is a Baseball card (Green Mini Diamond parallel) released in 2023. Ungraded copies carry a market value of about $9.23.
An ungraded copy is worth around $9.23, a PSA 10 (Gem Mint) around $100.00 and a pristine BGS 10 around $130.00. That's roughly a 11× 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 $9.23 and top grades reaching $100.00, 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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