Emerald is just the perfect birthstone for those born in the month of May as it falls in the heart of Spring when flowers bloom and all things go green and colorful.
The garnet has a hardness of 6.5 to 7.5 in the MOHS scale of hardness.
In the MOHS scale of hardness, Amethyst is a 7. Jewelry with Amethyst stone is suitable for everyday use.