ISO!!!!! Help!! Silver and blue knob for a Tiffany purse!

I know it’s a longshot, but unfortunately, my knob fell off my purse! So I’m looking for a replacement! I have not had a chance to make it down to Tiffany’s as the closest one is an hour and a half away, which they will ship it for free, if I take it to them. Otherwise, if I ship it directly to them, I will have to pay a fortune and insurance to ship! and I don’t want to spend a fortune on insurance to ship. They will not ship me a replacement knob through the mail. It has to go through them so they can repair it.