TCGrader's AI has graded 4 copies of Janine's Secret Art (Prismatic Evolutions), averaging 9.2 overall. 100% scored 9 or higher, so clean copies are common and centering usually decides the top grades. A grade 10 copy sells for around $81.00, about 3.1× the $26.15 raw price, so high-grade copies are worth grading.