How much is a PSA 6 Koga #19 worth?
The PSA 6 Koga #19 from Gym Challenge (English) has a median market value of $75, with recent sales ranging $75 to $75 — based on 1 recent graded sale.
Is a PSA 6 Koga #19 worth more than ungraded?
Yes. A PSA 6 copy has a median value of $75 versus about $70 ungraded — roughly a 1.1× premium for the PSA 6 grade.
Where do PokéTT's PSA 6 prices come from?
PokéTT tracks real graded sales across eBay, Yahoo Auctions and Mercari, then shows the median within the PSA 6 grade — not a single outlier sale — so the mark reflects the true market.