Reply To: Stone material for competition › Forums › General Discussion › Stone material for competition › Reply To: Stone material for competition February 15, 2016 at 1:54 pm #2235 Alan BalmerKeymaster @alanbalmer The material is also called out in the GemCad diagrams. As I understand it, you can enter any category except Grand Master. That category requires a previous Master score of 95, or qualification for the Australian Challenge.
