[jsfriedm]

Presumably the question is not just about disclosing the grading, but also the pricing. If you were intending to price it as a PSA 7, there would be no reason to crack it out. So the reason for cracking out must be that you would like to price it higher. Most people will probably say that if someone is willing to pay your price, all's fair in love, war, and baseball cards. But I think it is important to note that the value of a PSA 9 is the specific value of a PSA 9, not the value of a raw card that maybe looks like a PSA 9. A PSA 9 has certain properties (for example, the ability to sell it to someone else without having to convince them that it should be a PSA 9) that do not adhere to the raw card and are included in the value.