Types of Coral Stone - A Complete Guide Coral Stone is considered to be the zodiac stone of Aries in Western astrology. Coral is also considered the 35th wedding anniversary stone, so, if you want to celebrate your 35th wedding anniversary, consider buying coral jewelry for your partner. In Vedic Astrology, the red coral, which is also known as “Moonga”, is considered to be the star stone for the planet Mars, and it is said that wearing red coral jewelry can reduce the ill effects of negatively placed Mars in your birth chart.