Mega Diancie ex #267 from Ascended Heroes is a ultra_rare card that currently sells for about $8.39 ungraded, with graded copies ranging from $10.50 at grade 7 to $56.00 at grade 10. TCGrader's AI has graded 9 copies of Mega Diancie ex (Ascended Heroes), averaging 8.5 overall. 33% scored 9 or higher, so a strong copy is achievable but far from guaranteed. A grade 10 copy sells for around $56.00, about 6.7× the $8.39 raw price, so high-grade copies are worth grading.