Mega Diancie ex #267 from Ascended Heroes is a holo ultra_rare card that currently sells for about $9.48 ungraded, with graded copies ranging from $25.00 at grade 7 to $79.95 at grade 10. TCGrader's AI has graded 6 copies of Mega Diancie ex (Ascended Heroes), averaging 8.6 overall. 50% scored 9 or higher, so a strong copy is achievable but far from guaranteed. A grade 10 copy sells for around $79.95, about 8.4× the $9.48 raw price, so high-grade copies are worth grading.