1990 Donruss Learning Series George Brett #1
1990
See all George Brett cards & values$4.29est. value (ungraded)
Prices updated 2026-10-22
Based on recorded sold prices how we price cards
Price by month
Average price of the 1990 Donruss Learning Series George Brett #1 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 | $4.29 | — |
George Brett prices by grade
| Grade | Value | eBay |
|---|---|---|
| Ungraded | $4.29 | Buy on eBay ↗ |
| PSA 8 | $18.87 | Buy on eBay ↗ |
| PSA 9 | $21.00 | Buy on eBay ↗ |
| Grade 9.5 | $72.07 | Buy on eBay ↗ |
| PSA 10 | $223.39 | Buy on eBay ↗ |
| BGS 10 | $290.00 | Buy on eBay ↗ |
| CGC 10 | $134.00 | Buy on eBay ↗ |
| SGC 10 | $134.00 | Buy on eBay ↗ |
Live on eBay
Affiliate — we may earn a commission1990 Donruss Learning Series George Brett #1 value & prices
The 1990 Donruss Learning Series George Brett #1 is a Baseball card released in 1990. Ungraded copies carry a market value of about $4.29.
An ungraded copy is worth around $4.29, a PSA 9 around $21.00, a PSA 10 (Gem Mint) around $223.39 and a pristine BGS 10 around $290.00. That's roughly a 52× 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 $4.29 and top grades reaching $223.39, 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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