Those Earrings are made of Moonstone.
Moonstone is strongly connected to the moon and intuition. Directly associated with the Mother Goddess, it is foremost a women’s stone has it assists in allowing to be more comfortable with one’s feminine side. Vibrating with the energy of the moon, the stone has a reflective and calming energy. As a stone of new beginnings, it is also said to have the power to grant wishes. Moonstone is a stone of inner growth, strength and stabilizes emotions.