Koffing [1st Edition] #51

Base Set

Full card page & price history PSA 10 price & population Should you grade it?

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Koffing [1st Edition] #51 PSA 10: price & population

PSA 10

$583.93

Raw

$25.08

PSA 10 pop

631

Gem rate

22.5%

A PSA 10 Koffing [1st Edition] #51 from Base Set sells for $583.93 — a 2,228% premium over the $25.08 raw price. PSA has graded this card 2,806 times; 631 came back a 10 (22.5% gem rate), and 1,103 a PSA 9.

The 9-to-10 spread

PSA 9 sells for $80.72. The jump from 9 to 10 is worth $503.21 — that spread, times your real odds of the 10, is what decides whether grading pays.

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Prices from real completed sales, updated daily. Population data from PSA's public population report.