When you are going to ship it , let us say via USPS, how much do you decide to insure the cue? For the X amount that you paid for or for the XX amount that you are selling the cue?
The sole and only loss you would have suffered would be the monetary value of the sale and thus, the declared value of the insurance secured for shipping said cue. Nothing else matters whatsoever.
It does not matter a tinkers damn what you think you could get for that cue if it had to be replaced due to damage or outright disappearance in transit. That does not matter, even if you had a written offer from some subsequent collector whom was willing to pay twice what you sold the cue for.......It does not matter.
Your limitation for subsequent recovery of money is from the shipper and the insurance coverage you decided to obtain and of course, the amount of insurance you procured. If you sold the cue for $2500 and had taken out $10,000 insurance coverage, you do not get an extra $7500 on any claim. It is very straightforward and any person with business savvy understands insurance and how it applies to items they ship or receive. If you sold the cue for $2500 and only took out a $1200 insurance coverage, you eat the $1300 difference regardless of how much the cue was actually worth....Got it?