Purple「イオーネ」is a Bijousha from Skyriver, who possesses the power of the purple rainbow in the Guardian Angels Of The Sky series. Ione made her first debut in Guardian Angels Of The Stars, the second season of the series.
Ione is the keeper of the purple rainbow who resides inside one of the Heart Brilliants, which belongs to Itou Ami. Ione used to be a close friend of Rosa's when they were normal fairies. But soon, the two become Bijoushas, which bound them to the shrine at Skyriver. Ione is a lot calmer than Rosa, yet is still pretty a happy-go-luck Bijousha. Ione and Ami's personalities seem to mirror, as both are the smart and calm kind of person, who prefers to think before acting.
- Itou Ami: Ami is Ione's trusted partner, who is one of the few to be bron with a chromosome of light. Ami and Ione seem to share quite a lot, as both prefer thinking about a situation before getting involved.
- Ione's appearance resembles a sheep.
- Ione is a feminine given name, which comes from Greek ion meaning "violet flower". This was the name of a sea nymph in Greek mythology.