Mystery Zone #137 PSA 10: price & population
PSA 10
$292.67
Raw
$7.99
PSA 10 pop
19
Gem rate
32.2%
A PSA 10 Mystery Zone #137 from Skyridge sells for $292.67 — a 3,563% premium over the $7.99 raw price. PSA has graded this card 59 times; 19 came back a 10 (32.2% gem rate), and 32 a PSA 9.
The 9-to-10 spread
PSA 9 sells for $20.50. The jump from 9 to 10 is worth $272.17 — that spread, times your real odds of the 10, is what decides whether grading pays.
Prices from real completed sales, updated daily. Population data from PSA's public population report.
