Emerald is a precious gemstone made of the mineral beryl with chromium and vanadium. It is expensive and not affordable for everyone. Green tourmaline and peridot are alternatives that have similar green colors. Emeralds originate from mines in Zambia, Colombia, Brazil, and the United States. They have benefits like increasing focus, promoting wealth and business growth. Emerald is best suited for the astrological signs of Gemini, Leo, and Virgo as they are ruled by the planet Mercury which emerald represents. Proper rituals and timing should be followed when first wearing an emerald ring or piece of jewelry.