![Zweilous [Master Ball] #66 from Pokemon White Flare](https://images.pokemontcg.io/rsv10pt5/66.png)
Zweilous [Master Ball] #66 PSA 10: price & population
PSA 10
$53.66
Raw
$5.34
PSA 10 pop
7
Gem rate
58.3%
A PSA 10 Zweilous [Master Ball] #66 from White Flare sells for $53.66 — a 905% premium over the $5.34 raw price. PSA has graded this card 12 times; 7 came back a 10 (58.3% gem rate), and 4 a PSA 9.
The 9-to-10 spread
PSA 9 sells for $15.86. The jump from 9 to 10 is worth $37.80 — 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.
