Jewel Heart

Jewel Heart (ジュエルハートJueruhāto) are important items in Prism Pretty Cure!, as the motivation for the Cure's. It is said that each Jewel Herat's colour and item reflects the owner's loving energy and wish.

Jewel Heart is the same. It is shown that a Jewel Heart changes to a dark grey if a new feeling of hatred and darkness towards the owners wish is more dominant. However, regardless of how strong the wish is darkened, those feelings will always disappear when purified along with the Jewel Heart.

When a Jewel Heart is mulipulated, the body separates into two things; the Jewel Heart transforms into a Kurayami, and one crystal which has the owner prisoned inside of it located in a General's orb. The owner can only return to normal if the Jewel Heart is purified.

The Shadow Kingdom use Jewel Hearts to form Kurayami's, and it is stated that the more a Jewel Heart is darkened, the stronger the Kurayami will be.