Tourmaline is dichroic, meaning it has at least two main colours that produce the colour you see. This is why from different angels and different light it can look like a completely different stone. Part of why i like this stone so much is its diversity.

Rubellite Tourmaline ~ 12.70ct ~ 12.6mmx15mm ~ $200/ct

Rubellite has become so rare and expensive, often sold for much more. This beauty is unusually large and has great colour play. A few natural inclusions keeps this an affordable piece.