Red coral (Moonga)
Red coral (Moonga) is the gem of Mars in Vedic astrology. Traditionally set in gold or copper and worn on the ring finger on a Tuesday, it is linked with courage, drive and confidence.
Also known as: Munga, Praval
Mars stands for energy, courage, siblings, property and competition. Red coral is worn to strengthen a helpful Mars that is weak in the chart. It is organic, formed by marine creatures, so responsible sourcing matters; natural coral is protected in many regions.
By house lordship it is most often considered for Aries, Cancer, Leo, Scorpio, Sagittarius and Pisces ascendants; for Cancer and Leo, Mars is the yogakaraka. Astrologers are usually wary of it for Taurus, Gemini, Virgo, Capricorn and Aquarius ascendants, where Mars rules one of the 3rd, 6th, 8th, 11th and 12th houses, and careful with it for Libra, where Mars rules both maraka houses, the 2nd and 7th.
If Mars is already strong or afflicted, coral can add restlessness or temper. Carnelian is the usual, gentler substitute. Choose natural coral rather than dyed or glass imitations.
Coral is a traditional support, not a cure. Consult a qualified astrologer before wearing it.