Generally speaking, green represents the color of tranquility, nature, peace and comfort.
Green gems mainly include emerald , green agate , green Anis , aventurine, malachite, green fluorite, greentourmaline/tourmaline, green tiger eye, etc.
Green is the lucky color for Taurus and Aquarius
According to the Indian chakras, green represents the heart chakra , which symbolizes love and affection