Onix

FireRed & LeafGreen · #42/112 · Uncommon · 2004

$2.79
Market price 2.6% (30d)
Prices as of Jul 26, 2026
HP 80FightingBasicArt · Kouki Saitou
177graded pop
20%gem rate
8.9×PSA 10 vs raw
-72%off ATH $9.00 · Apr 2021
+$98.49EV to grade — worth it

Printings & price history

Normal 1.8% 7d$2.79
Low $1.75Mid $2.90

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Graded values

updated 2026-07-26
Grade 6 est.$2.36
Grade 5 est.$1.98
Grade 4 est.$1.64
Grade 3 est.$1.36
Grade 2 est.$1.12
Grade 1 est.$0.94

Grades 1–6 are estimates modeled from the raw price — PSA/CGC/BGS 7–10 and Ungraded are live tracked market values.

PSA 10 price history$164.00

PSA 10 chart is building — graded values are tracked nightly, a new point appears each day.

Graded population census · updated 2026-07-07

PSA119 graded · 16 gem 10
CGC58 graded · 19 gem 10

Population data from PriceCharting, updated monthly.

Attacks

10Rock Throw
Tunneling
Choose up to 2 of your opponent's Benched Pokémon. This attack does 10 damage to each of them. (Don't apply Weakness and Resistance for Benched Pokémon.) Onix can't attack during your next turn.

How much is Onix #42/112 worth?

A raw copy of Onix #42/112 (FireRed & LeafGreen, 2004) is worth about $2.79 right now, based on the latest market data from July 26, 2026. Across the 2 printings we track, copies run anywhere from $1.75 to $499.90 depending on the version you're holding.

Grading changes the math on this one: a PSA 10 is valued around $164.00, roughly 58.8x the raw price, while a PSA 9 sits near $136.48. 119 copies have been graded to date, and 13% of them came back a 10 — worth knowing before you pay grading fees.

Prices on this page refresh nightly from live TCGplayer market data and are cross-checked against actual sold prices, so a single inflated listing never becomes "the price". The chart above has the full history.