Iron Boulder

Terastal Fest ex · #77/187 · Common · 2024JPN

$3.22

Market price ▲ 1.3% (30d)

Prices as of Aug 14, 2026

Master Ball Pattern Standard

149graded pop

80%gem rate

5.7×PSA 10 vs raw

-18%off ATH $3.64 · Jul 2026

−$10.52EV to grade — don't

Market data

Printings & price history

Master Ball Pattern▲ 0.0% 7d$3.22

Low $3.13Mid $3.75High $11.00

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Live listings

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Graded market

Graded values

updated 2026-08-14

Grade 6 est.$2.85

Grade 5 est.$2.40

Grade 4 est.$1.98

Grade 3 est.$1.65

Grade 2 est.$1.35

Grade 1 est.$1.14

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

Ungraded price history$3.00

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

Graded population census · updated 2026-07-09

PSA1 graded · 1 gem 10

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Population data from PriceCharting, updated monthly.

How much is Iron Boulder #77/187 worth?

Right now (August 14, 2026) the going rate for an ungraded Iron Boulder #77/187 from Terastal Fest ex is about $3.22. Across the 2 printings we track, copies run anywhere from $3.13 to $11.00 depending on the version you're holding.

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.

Collecting Terastal Fest ex?Full master set guide — every card, chase list, and completion cost→