2025 Donruss Diamond Kings Theo Gillen #9
2025
$6.36est. value (ungraded)
Prices updated 2026-10-16
Based on recorded sold prices how we price cards
Theo Gillen price history
Ungraded market value, one reading a day. One-day spikes that reverse the next day are left out.
Recent recorded prices
4 recorded price points for the 2025 Donruss Diamond Kings Theo Gillen #9 from our sales and market data.
| Date | Source | Price |
|---|---|---|
| Oct 16, 2026 | Market value | $6.36 |
| Oct 4, 2026 | Ebay Market | $15.00 |
| Aug 19, 2026 | Ebay Market | $11.72 |
| Aug 18, 2026 | Market value | $8.44 |
Theo Gillen prices by grade
| Grade | Value | eBay |
|---|---|---|
| Ungraded | $6.36 | Buy on eBay ↗ |
| PSA 8 | $10.39 | Buy on eBay ↗ |
| PSA 9 | $18.99 | Buy on eBay ↗ |
| Grade 9.5 | $36.68 | Buy on eBay ↗ |
| PSA 10 | $53.29 | Buy on eBay ↗ |
| BGS 10 | $69.00 | Buy on eBay ↗ |
| CGC 10 | $32.00 | Buy on eBay ↗ |
| SGC 10 | $32.00 | Buy on eBay ↗ |
Live on eBay
Affiliate — we may earn a commission2025 Donruss Diamond Kings Theo Gillen #9 value & prices
The 2025 Donruss Diamond Kings Theo Gillen #9 is a Baseball card released in 2025. Ungraded copies carry a market value of about $6.36.
An ungraded copy is worth around $6.36, a PSA 9 around $18.99, a PSA 10 (Gem Mint) around $53.29 and a pristine BGS 10 around $69.00. That's roughly a 8.4× 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 ($6.36) and top-graded ($53.29) 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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