In creating readings and natal charts, several sciences bring their contribution, effectively complementing each other. One of such sciences is gemology, the power of certain gems being well-known since ancient times. In Vedic Astrology, planetary gemology relies on nine planets and their main gemstone – known as navaratnas. The planets and their corresponding gems are: Sun – ruby, Moon – pearl, Mercury – emerald, Mars – red coral, Venus – diamond, Saturn – blue sapphire, Jupiter – Yellow sapphire, Rahu – hessonite, Ketu – cat’s eye. Now let’s take a more in depth look at these correlations.
Sun - Ruby
Ruby is the most powerful gemstone that strengthens the Sun. It enhances courage, willpower, and authority, increasing vitality and one’s ability to perceive truth. It can fasten the development of spiritual insight, or looking within toward spiritual realization. On the physical side, it may strengthen the heart and help digestion and metabolism. The major sources of rubies are Thailand, Burma, Laos, Cambodia, India, Sri Lanka, Africa and Afghanistan.
Moon - Pearl
Pearl and moonstone strengthen the Moon, and it is believed that they may help to alleviate conditions caused by a weak chart placement. These two gems may also bring peace of mind to the wearer, enhancing spiritual meditations. Physically, the pearl balances bodily fluids and reduces body’s internal temperature. The pearl is known for its calming effect of the nerves, decreasing feelings of anxiety and futility. Natural pearls are much stronger than cultured pearls. Cultured pearls are mainly found on the market in the west. Pearls with which we are all familiar are produced in a mollusk (or oyster).
Mercury - Emerald
Emerald increases considerably the powers of intellectual focus and communication. This is particularly beneficial for writers, speakers, or entertainers, business people and those in the various fields of communication. Most people find that emeralds give a magical quality to their ability to intellectually be present and connect more fully with what their eyes visually take in. Sources of emeralds are Colombia and Brazil, India, Africa (Zambian and Tanzanian are often the best), Iran, Pakistan, Afghanistan, Egypt and Russia.
Mars - Red Coral
Wearing a red coral stone or a strand of beads is recommended in order to strengthen Mars. The deeper the red, the more power it will have. The wearing of this stone will increase vitality, courage, and the ability to work on your goals and tasks until you successfully accomplish them. The main sources of red coral were the Mediterranean, Persian Gulf, Red Sea, Africa, Australia, Taiwan and Italy.
Venus - Diamond
Diamonds increase artistic and creative abilities. It is said that it can create love and devotion in relationships, increasing passion and sexual desires. Physically, it strengthens the reproductive system, having healing properties (mainly in the treatment of chronic diseases). Major sources of diamonds are Africa, Australia, Russia, India, Indonesia, and Venezuela.
Saturn - Blue Sapphire
Blue sapphires should only be worn after a Vedic gemologist carefully examines your chart because of Saturn’s malefic influence on certain individuals’ charts. This gem is said to counteract envy and ensure protection, freeing an individual from mental and emotional anxieties. Physically, it is said to strengthen bones and cleanse the blood as Saturn rules the bones. Sources for sapphires are Sri Lanka, India, Burma, Thailand, Cambodia, U.S. (Montana), and Australia.
Jupiter - Yellow Sapphire
The yellow sapphire enhances the qualities of calmness, generosity, wisdom, and compassion. It also increases power of concentration, feelings of love, and it often brings prosperity and material abundance. The yellow sapphire is ideal for meditations as it improves such practices through magnifying a feeling of the peace and tranquility. It can also help an individual maintain their body weight, while strengthening their immune system, too.
Rahu - Hessonite
It is called "gomedak" in sanskrit, or "gomed" in Hindi, the language understood by many living in India. Along with increasing self-confidence, this gem is said to enhance artistic creativity and the imagination. Because Rahu partially rules worldly ambitions, it can increase a person’s ambition and increase subtle awareness of the senses. Physically, it is said to aid nervous system disorders. Hessonite prevents calamities from occurring in the wearer’s life and it protects against evil spirits.
Ketu - Cat's Eye
The gemstone for Ketu is Chrysoberyl Cat’s-eye; The finest quality stones are lemony yellow colored often referred to as "milk and honey", the outer part of the stone is honey in color, the inner eye is whitish milk like color which flashes as the stone is turned. The ancients believed that Chrysoberyl cat’s-eye protected the wearer from diseases, epidemics, negative spiritual attachments, and harm from enemies. Chrysoberyl Cat's-eye has been known to increase powers of psychic abilities and clairvoyance. The source countries for cat's-eyes are India, Burma, Sri Lanka and Brazil.
By knowing these correspondences between the planets and their gems, you may identify whatever it is that needs to be improved or changed in your life, and then get the right stone for it, the gem that will facilitate your journey of change.