While watching an auction on ebay, checked the cert. number and found.... and how to fix this!

While watching an auction on ebay, checked the cert. number and found....Nothing?

When I see a coin auction on a nice coin from an unknown seller, what is one to do?

To help prevent the selling of fake coins, should all grading companies allow us to look up and verify?

THIS IS HOW TO GET AROUND THE PROBLEM!

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It's been a while since I have done this, but I will tell you what I do. I list the coin as if I own it and wait and let the registry add it to my set!?

This tells me exactly if it is a good valid coin or one that is a fake!

Then I go back and remove it as soon as it lists as a valid coin. Now I am sure this is not what NGC wants us to do, but given no choice, I feel I must protect my purchase.

Should the coin community just sell coins and take our money, or should they give us a level of protection against those who rip people off!

Please tell me or everyone what you think!