Free shipping. Sale $ 200 - 10% Sale $ 400 - 20% Sale $ 500 - 25% RARE tourmaline cat's eye (cats eye) RARE teal blue tourmaline. The cat's eye is perfect, right and end! The stone is not perfectly round. The base is not flat but rather an accordion :( The base appears to be a natural start Crystal face. For tourmaline, the eye is formed on the channel voids. A turquoise Dichroism - Sage Green / olive (photos 3 and 4) The stone is translucent. Pictures - fluorescent lighting.