As mentioned in the Bible, the historical origin of birthstones is believed to date back from Aaron. Aaron is a high priest during the time of Moses and he wore a breastplate with twelve gemstones representing the twelve tribes of Israel. As times goes by, people believed that wearing one's own birthstone can bring good luck. Here the following is a chart for birthstones by month and its colors. Birthstones by Month and Birthstone colors Birthstone of January - Garnet Birthstone Monogram Necklace from GetPersonalizedJewelry January Birthstone - Garnet Birthstone for January is Garnet. Garnet is rich in colors, such as pink, violet, yellow, red, brown, black, purple, orange, grean and even transparent. The most popular color of garnet is reddish-brown. Dates back to 5,000 years ago, ancient Egyption people started to use garnet for beads and jewelry. Garnet was also very popular in Greece, Rome, Sumeria, Sweden and many European countries during the Middle Ages. In Ind