While this is typically a personal decision, it can often be influenced by the cemetery regulations where the memorial is to be placed.
In most cases the cemetery will provide the answers to you. If not, we can assist you with finding the answers.
Are there two or more people or just one you are wanting to memorialize?
This is typically a personal decision unless the cemetery requires one or the other. Granite is the go to material for most monuments and flat markers today.
I would change this to are there other colors other than grey (wouldn’t get into pricing you might talk them out of it before they come)