The 2016 Promo Mewtwo & Mew GX #SM191 is valued at $310 raw, $478 in PSA 9, $1,617 in PSA 10 as of November 3, 2026. Its market value is up 3.5% over the last 30 days, from $300 to $310. Across the 88 days we have tracked it, it has ranged from $256 to $350, and it currently sits 11% below that high. With 2,096 recorded sales, it ranks #106 of 500 Pokémon cards we track by trading volume.
On current values, a PSA 9 ($478) is worth $142 more than a raw copy plus a $25.00 grading fee, and a PSA 10 ($1,617, 5.2× raw) is worth $1,282 more. The cheapest Raw copy we matched on eBay when we last checked on November 3, 2026 was $160, 48% under our Raw market value of $310.
About $310 raw, $478 in PSA 9, $1,617 in PSA 10, based on our market values as of November 3, 2026. Its market value is up 3.5% over the last 30 days, from $300 to $310.
On current values, a PSA 9 ($478) is worth $142 more than a raw copy plus a $25.00 grading fee, and a PSA 10 ($1,617, 5.2× raw) is worth $1,282 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 $160, 48% under our Raw market value of $310.