Oh man Dave that is a beauty! You Re the chess set King, for sure. I have a piece of alternative Ivory for the light colored pieces. I do not know how well it will cut on a scroll saw, I have turned it on a lathe and it was very nice to turn. I also do not know how it will price out either. May find it is overly expensive, I do have a piece I am going to play with to see how it would look, how much sanding after cutting is another consideration. But if it you like Ivory and it worked it would be beautiful.
https://www.masecraftsupply.com/Alternative-Ivory-col849TM_c_268.html