Red Coral or Lal moonga is the hard skeleton of small leafless bushes that are composed of intermeshed spicules of hard calcium carbonate. They looks like underwater colorful plants but in reality, they are gelatinous marine animals called polyps. Red corals are organic gemstones formed out of skeletons of individual polyps depositing together to make a colony. The remarkable characteristic of precious Red Coral Gemstones is their durable nature and intensely colored red or pink skeleton, which is commonly used in jewelry making. The red coral stone is naturally matte but can be polished to a glassy shine. The color ranges from warm reddish pink, pale pink to deep red. They are also found in other colors like, scarlet, saffron, coral red, pink to vermilion red and white.
As per Hindu Mythology, Red coral Gemstone is believed to nullify malefic effects of Mars or Mangal Graha and to please him. Mars being the god of war and energy is the commander-in-chief of the assembly of the nine planets. His red color is the symbol of blood and perseverance in human life. He is known as "Angarak" and the son of the earth due to his nearness to the earth.