The diamond is the April Birthstone.
April's birthstone is remarkably simple in composition, yet stunning in its unique ability to reflect and refract light into vivid flashes of brilliant color. The ancient Hindus called the Diamond "Vajra," meaning lightening, both because of the sparks of light thrown off by this gem as well as its invincible strength. The Diamond is harder than any other substance on earth.
A gift of a Diamond is symbolic of everlasting love. There is no more convincing a promise of an enduring relationship than the brilliant gemstone that has endured in people's hearts throughout the ages.