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Koraidon ex (Scarlet & Violet Black Star Promos) is one to leave raw for the moment. A -34% Return on Grading comes from the spread between $0.60 raw and $60.00 graded. Better to put the submission slot toward a stronger card from the same set.
Among the 25 cards in Scarlet & Violet Black Star Promos with PSA 10 sale data, Koraidon ex ranks 13th for Return on Grading and 13th by PSA 10 price. Of the 25 Promo cards with PSA 10 sales, it is 13th for Return on Grading. The median PSA 10 in this set sells for $60.00. 5 of the 25 clear a 100% Return on Grading.
