Duosion
Sword & Shield Promos · #312 · Common · 2019JPN
All 25 Duosion cards ranked by value →Price history
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Graded values
Grades 1–6 are estimates modeled from the raw price — PSA/CGC/BGS 7–10 and Ungraded are live tracked market values.
Ungraded chart is building — graded values are tracked nightly, a new point appears each day.
Graded population census · updated 2026-09-21
Population data from PriceCharting, updated monthly.

More Duosion cards all 25 ranked by value →
How much is Duosion #312 worth?
A raw copy of Duosion #312 (Sword & Shield Promos, 2019) is worth about $5.99 right now, based on the latest market data from November 8, 2026.
These figures come from nightly market-data syncs verified against completed sales. Use the chart above to see the trend before you buy or sell.
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