![Slowpoke [Reverse Holo] #17 from Pokemon Japanese HeartGold Collection](https://pokeinvest-japanese-card-images.nyc3.cdn.digitaloceanspaces.com/HeartGold_Collection/017_Slowpoke_17.jpg)
Slowpoke [Reverse Holo] #17 PSA 10: price & population
PSA 10
$281.80
Raw
$30.00
PSA 10 pop
78
Gem rate
50.3%
A PSA 10 Slowpoke [Reverse Holo] #17 from Japanese HeartGold Collection sells for $281.80 — a 839% premium over the $30.00 raw price. PSA has graded this card 155 times; 78 came back a 10 (50.3% gem rate), and 58 a PSA 9.
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The September 2026 Grade Report ranks the 30 most profitable cards to grade right now, by expected profit after every fee. Same math as this page, run across the whole market. $29, one time, instant.
See the top 30 →Prices from real completed sales, updated daily. Population data from PSA's public population report.
