Before venturing into using a 3rd party, you might be pleasantly surprised initially listing it for sale on this website.
Excellent photos bolster your chances of selling it and if you are not sure about what price to ask, do some Internet
research on used Diamond pool tables. See what the going rate averages. Put a thread in the Main Forum asking for
pricing suggestions before listing the table for sale. What does a new 7’ Diamond table cost? Allow that someone has
to disassemble, move and reassemble the table at their own extra cost to the price of the table. How fast do you want
to sell it and the price you initially assign will help determine that. Great deals sell faster than bargains and fair deals
for the seller and buyer can take a little longer. Why? Because buyers and sellers don’t always agree on what’s fair.
also ive found you get better buyers if you advertise in a local newspaper.
and if on the net put up your price and terms so its crystal clear. like price, cash, firm etc. or plan on lookie lous and people straying to lowball you at your waste of time.
and try to vette anyone before they get into your house.
You're buyers for a Diamond are on AZB and FB pool specific groups in your area. You need a serious player to pay over 4k for a table. The regular for-sale channels will only have free tables and cheap furniture tables. That customer won't be interested in Diamond money.
Call Diamond. Brian or Aaron may have someone in your area that is looking. They may even have an installer/distributor that would move it for the prospective buyer.