2000 Gym Heroes Brock's Onix #21
Rare · 2000
$12.61est. value (ungraded)
Prices updated 2026-09-14
Based on current asking prices how we price cards
Recent recorded prices
1 recorded price point for the 2000 Gym Heroes Brock's Onix #21 from our sales and market data.
| Date | Source | Price |
|---|---|---|
| Aug 15, 2026 | Ebay Market | $12.20 |
Brock's Onix prices by grade
| Grade | Value | eBay |
|---|---|---|
| Ungraded | $12.20 | Buy on eBay ↗ |
| PSA 8 | $44.00 | Buy on eBay ↗ |
| PSA 10 | $303.44 | Buy on eBay ↗ |
Live on eBay
Affiliate — we may earn a commission2000 Gym Heroes Brock's Onix #21 value & prices
The 2000 Gym Heroes Brock's Onix #21 is a Pokémon card released in 2000. Ungraded copies carry a market value of about $12.20.
An ungraded copy is worth around $12.20 and a PSA 10 (Gem Mint) around $303.44. That's roughly a 25× 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 $12.20 and top grades reaching $303.44, 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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