How to sell a diamond?

[mikejfrd]

I have a diamond now, and will be switching cell phone providers, and having my number ported. If I sell my diamond after the number is ported and the sprint service is canceled, can someone that buys it off of say ebay activate it under their account and use the phone?

I've sold phones on ebay before, but never after I had canceled the service on it. Just want to make sure I don't sell a phone to someone that can not be activated.

Also is it better to advertise and sell it "unlocked" or just as it was shipped?


Thanks,

Mike