The name of the stone, garnet, comes from the Latin word for pomegranate, whose glistening, jewel-like seeds the most common form of garnet resembles. Because of that association, garnets acquired many of the qualities and myths associated with the seeded fruit. Like the pomegranate, the garnet is said to confer fertility and bring righteousness and healing – making it the perfect stone to be given as an engagement gift. In fact, long before diamonds took that title, garnets were a traditional engagement stone.
*copied from a jewelry site