Diamond. April birthstone.
Diamond is so strong, in fact, that its name comes from the Greek word "adamas," which means “invincible” or “unbreakable.”
The April birthstone was even believed to have healing powers. Over the centuries, the diamond birthstone was thought to be an antidote to poison and provide protection against the plague. Some claim that it is a boon for longevity, strength, beauty and happiness.
Diamond is the gift of choice for the 60th and 75th wedding anniversaries.