How much is a PSA 10 Mewtwo?

A PSA 10 Mewtwo from Pokemon Japanese Regigigas Half Deck is currently priced at $565 based on completed sales tracked on PokeInvest.

Is grading Mewtwo worth it?

With a raw price of $20 and a PSA 10 selling for $565, grading Mewtwo has a potential gross margin of $545 before PSA fees (from $59.99 a card, more for higher declared values). Use the PokeInvest PSA Calculator for a full ROI breakdown.

PSA 9 vs PSA 10 Mewtwo: what's the price difference?

A PSA 10 Mewtwo sells for about $565 versus about $169 for a graded 9 (PSA, CGC and BGS 9 sales combined), so the 10 carries a 3.3x premium based on recent sales tracked on PokeInvest.