BIRTHSTONE OF THE MONTH-AMETHYST Sincerity is the personal trait usually associated with rich purple amethyst for those born in February. Greeks and Romans felt the stone had such powerful healing effects that it was often placed under pillows to cure insomnia. .Amethyst is the beautiful purple variety of the quartz family. With a hardness of seven it is a very wearable gemstone, making it a perfect accessory for all occasions. Please Enter Copy