Thread:Aptos/@comment-27847292-20160518182322/@comment-27847292-20160518231556

Aptos wrote: http://www.palagems.com/ruby-sapphire-borders/ The concept of Padparadscha being the same as Sapphire is really unnecessary. It is labeled with sapphire because it classifies the type of gem. But it doesnt mean it is sapphire. Liekwise, Black Prince Ruby is a spinel, not a ruby, but its in the name Its not the same as sapphire. It is a variety of such. That is like saying alexandrite is the same thing as chrysoberyl.

Black Prince Ruby was named as such because back when it was named, ruby just referred to all red gems in general.