This is a provenance category, not an authentication category, and the difference runs through everything below. Nobody can confirm a signature on a video call. What you can do is tell the truth about where something came from, in enough detail that a buyer can weigh it.
Say which of the three it is
Match-worn — worn by that player in a match. Match-issued — made for the player and issued to them, but not shown to have been worn. Replica — a retail item, officially made, never issued.
These are three different objects at three very different prices, and the honest listing says which one and how you know. If you cannot establish the difference, the word is replica or unverified, not the hopeful one.
Then say how you know
"I was at the ground and he signed it in front of me" is provenance. "It came with a certificate" is provenance only to the extent that you can say who issued the certificate. "The previous owner said" is still worth saying — it is just worth less, and buyers can tell the difference.
A certificate is worth exactly as much as the reputation of whoever issued it.
What to show on camera
- The signature, close and still, in even light
- Any labels, tags or sizing on a shirt
- The maker's marks on a bat
- Any certificate, including the issuer's name, readable
- The whole item, so the signature can be placed on it
What not to say
Do not write "authentic" or "guaranteed genuine" about a signature you did not watch being signed. It converts an honest sale into a claim you cannot defend, and if it goes wrong it is a not-as-described problem with your name on it.
"Unverified, sold as seen, priced accordingly" is a sentence that sells. It sells less, and it sells safely.
Delivery
Bats are long, frames are glass, and shirts crease. Packing cricket memorabilia.
More: how to sell on Metzee, pricing cricket memorabilia.
Questions people ask
Can I sell an unverified signed item?
Yes, described as unverified. That is a normal and respected listing in this field.
Does a photograph of the signing help?
Enormously. It is the strongest provenance most sellers will ever have — show it.
Should I get something authenticated before selling?
It depends on the value and on who would do it. Say plainly what you did and did not do.