I don't think you can share and trade emblems and such. However, it should be tied to your PSN account, so if your friend made it while on your account, you should be able to access it wherever you login.
So no, without them being on your account, not possible.
However, that said, paying a stranger and giving them your account details isn't a good idea. The risk isn't worth it , and you could probably make something you'd be proud of in one sitting or two.
If it's someone you personally know and trust, sure, go ahead, but a random person online? It's your account details you're talking about giving out.