Celebrate June birthdays with pearls, which supposedly symbolize modesty and purity. Pearls protect against nervous and anxious thoughts, as well as control anger. Medically, pearls can treat digestive disorders, increase fertility and ease the pain of childbirth. Alexandrite also correlates with June. It ranks alongside ruby, one of the world’s most desirable gemstones. This gemstone treats nervous system disorders, as well as pancreatic and spleen disorders.