The 2017 Shining Legends Mewtwo GX #78 is valued at $678 raw, $1,425 in PSA 9, $8,462 in PSA 10 as of November 3, 2026. Its market value is up 11.5% over the last 30 days, from $608 to $678. Across the 89 days we have tracked it, it has ranged from $0.25 to $760, and it currently sits 11% below that high. With 1,526 recorded sales, it ranks #234 of 500 Pokémon cards we track by trading volume.
On current values, a PSA 9 ($1,425) is worth $722 more than a raw copy plus a $25.00 grading fee, and a PSA 10 ($8,462, 12.5× raw) is worth $7,760 more. The cheapest Raw copy we matched on eBay when we last checked on November 3, 2026 was $500, 26% under our Raw market value of $678.
About $678 raw, $1,425 in PSA 9, $8,462 in PSA 10, based on our market values as of November 3, 2026. Its market value is up 11.5% over the last 30 days, from $608 to $678.
On current values, a PSA 9 ($1,425) is worth $722 more than a raw copy plus a $25.00 grading fee, and a PSA 10 ($8,462, 12.5× raw) is worth $7,760 more. This ignores gem rate and selling fees, so treat it as a best case.
The cheapest Raw copy we matched on eBay when we last checked on November 3, 2026 was $500, 26% under our Raw market value of $678.