Could someone please help me identify this stone? My mother was given this ring by my grandmother (in the 60''s, I believe) who bought it for her as a birthstone ring. She purchased it from a local jewlery store with the understanding that it was an amethyst. When my mother gave it to me, I could not believe it was an amethyst, since it''s color dramatically changes depending on the lighting, and I''ve never seen an amethyst do that before. I have been searching, and a color change garnet seems to fit the description perfectly for this stone, as it is a reddish purple in soft light and a blue with green undertones in flourescent lighting. Here are a couple of pics (that was a difficult task!) and they are pretty close to the actual color of the stone. the first is in soft lighting, and the second (in the next post) is in flourescent light. Thank you for your time!