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The maths doesn't work on Swanna (Cosmic Eclipse) right now. Raw copies trade around $0.27 while PSA 10s sell for about $45.00, a -50% Return on Grading. Grading and shipping fees would eat whatever margin is there.
Among the 113 cards in Cosmic Eclipse with PSA 10 sale data, Swanna ranks 94th for Return on Grading and 94th by PSA 10 price. Of the 7 Rare cards with PSA 10 sales, it is 7th for Return on Grading. The median PSA 10 in this set sells for $241.50. 48 of the 113 clear a 100% Return on Grading.
