Identifying Color-Changing Gemstones: Is It Labradite?

Question
I have a ring that is in the shape of a diamond and is a color changing stone. it has purple, green and gray in the stone and i am very curious to know what type of stone it is

Answer
There is a chance that is labradite...
at times this one was just dark with no collar than when it is at the correct angle with light shining on, it shows beautiful colors
in all directions... the best thing is to check with a jeweler or gemologist...
regards Rolfe