2025-26 Finest Base Set Kon Knueppel Oil Spill Refractor #4
2026
See all Kon Knueppel cards & values$17.88est. value (ungraded)
Prices updated 2026-10-25
Based on recorded sold prices how we price cards
Kon Knueppel price history
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 2025-26 Finest Base Set Kon Knueppel Oil Spill Refractor #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 | $17.88 | — |
Kon Knueppel prices by grade
| Grade | Value | eBay |
|---|---|---|
| Ungraded | $17.88 | Buy on eBay ↗ |
| PSA 8 | $26.67 | Buy on eBay ↗ |
| PSA 9 | $49.19 | Buy on eBay ↗ |
| Grade 9.5 | $76.61 | Buy on eBay ↗ |
| PSA 10 | $128.51 | Buy on eBay ↗ |
| BGS 10 | $167.00 | Buy on eBay ↗ |
| CGC 10 | $51.00 | Buy on eBay ↗ |
| SGC 10 | $77.00 | Buy on eBay ↗ |
Live on eBay
Affiliate — we may earn a commission2025-26 Finest Base Set Kon Knueppel Oil Spill Refractor #4 value & prices
The 2025-26 Finest Base Set Kon Knueppel Oil Spill Refractor #4 is a Basketball card (Oil Spill Refractor parallel) released in 2026. Ungraded copies carry a market value of about $17.88.
An ungraded copy is worth around $17.88, a PSA 9 around $49.19, a PSA 10 (Gem Mint) around $128.51 and a pristine BGS 10 around $167.00. That's roughly a 7.2× 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 $17.88 and top grades reaching $128.51, 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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