Jewel Charms (ジュエルチャーム Jueru Chāmu?) are the forms that Jewelpets turn into in their down-time. The specifics of how they work, their utility and their sizes vary from season to season.
In Jewelpet, each Jewelpet has their own Jewel Charm and is considered their "sleeping" state after the magicians cast a special spell on them. The Jewelpets stay on that form until they are awakened by either Rinko or Dian.
In Jewelpet Twinkle☆
In Jewelpet Twinkle☆, the Jewel Charm is a symbol of a Jewelpet's bond between a Jewelpet and their human partner and is used as a magical device by the people chosen by their Jewelpet partners. The caster needs to say "twinkle, twinkle, magical charm, winkle, winkle, jewel flash!" to activate the magical powers while they also change the caster's costume in the process to increase its magical potential.
In Jewelpet Sunshine
In Jewelpet Sunshine, the Jewel Charm is where all the Jewelpets originally came from. After casting magic, the Jewelpet must remain on their Jewel Charm form to recharge their energy.
In Jewelpet Kira☆Deco!
In Jewelpet Kira☆Deco!, the setting of Jewel Charms being where Jewelpets came from was remained. Jewelpets turn back into their Jewel Charm form when they are severely injured.
In Jewelpet Happiness
In Lady Jewelpet
In Lady Jewelpet, Jewel Charms were replaced with normal-looking gems. A Jewelpet returns to this form when they are severely injured or sealing themself.
In Jewelpet Magical Change
In Jewelpet Magical Change, Jewel Charms made a brief appearance in the beginning of the opening sequence. They also appeared in the first episode in the form of a book, but then they never appeared nor were mentioned.
- So far, Larimar is the only canon Jewelpet who has yet to have her Jewel Charm revealed.