Is Christian Koss worth grading?

Question

Accepted Answer

A grade 10 copy sells for around $77.05, about 7.7× the $9.99 raw price, so high-grade copies are worth grading. An AI pre-grade shows where your copy is likely to land before you pay for professional grading.

Grade	Market Price	vs Raw
💎 10	$77.05	7.7×
9.5	$50.39	5×
9	$25.98	2.6×
8	$14.10	1.4×
Raw (ungraded)	$9.99	1×

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Price by Grade