# Gemstones in Vedic Astrology > Gemstones in Vedic Astrology: Which gemstone suits your ascendant, the nine planetary gems at a glance, natural vs lab-grown stones, how to check and energise. Source: https://astroshala.com/gemstones/ --- Remedies · Gemstones # Gemstones in Vedic Astrology Gemstones in Vedic astrology are worn to strengthen one of the nine planets, and each planet has its own gem: ruby for the Sun, pearl for the Moon, red coral for Mars, emerald for Mercury, yellow sapphire for Jupiter, diamond for Venus, blue sapphire for Saturn, hessonite for Rahu, and cat’s eye for Ketu. Your birth chart, not your Moon sign, decides which gem helps you, and only a natural stone with a laboratory report is worth wearing. **9** planets, 9 gemsChosen by **your ascendant****1** lab report for every stone Find your gemstone[Book a consultation](https://astroshala.com/product/30-min-tele-talk-consultation/) ![Gemstones in Vedic astrology: the nine planetary gems, ruby to cat’s eye, each labelled with its planet, beside a zodiac wheel and a temple at sunset](https://i0.wp.com/astroshala.com/wp-content/uploads/2026/10/astroshala_gemstones.png?fit=1600%2C640&ssl=1) Nine gems ## The Nine Planetary Gemstones Each gem below belongs to one planet. The chip names the planet; the line under the gem gives its mineral, its day, and how it is worn. Every card links to the full guide for that gem, with its mantras and its ascendant table. ![Ruby (manik), the gemstone of the Sun](https://i0.wp.com/astroshala.com/wp-content/uploads/2017/07/Ruby-e1500238105398.png?resize=250%2C250&ssl=1) [Ruby (Manik)](https://astroshala.com/gemstones/ruby-manik/) Sun Corundum · Sunday · gold, ring finger The Sun’s gem, for a Sun that rules good houses but lacks strength. Aries, Leo, and Sagittarius ascendants wear it most; Virgo, Capricorn, and Pisces ascendants avoid it. Glass-filled “composite” ruby is not a remedy. [Read the ruby guide →](https://astroshala.com/gemstones/ruby-manik/) ![Natural pearl (moti), the gemstone of the Moon](https://i0.wp.com/astroshala.com/wp-content/uploads/2017/07/Natural-Pearl-e1500238270890.png?resize=250%2C250&ssl=1) [Natural Pearl (Moti)](https://astroshala.com/gemstones/natural-pearl-moti/) Moon Pearl · Monday · silver, little finger The Moon’s gem, for a mind and a home life that need steadying. Cancer, Scorpio, and Pisces ascendants are the usual wearers. The tradition asks for a natural pearl; many astrologers accept a fine saltwater cultured pearl. [Read the pearl guide →](https://astroshala.com/gemstones/natural-pearl-moti/) ![Red coral (moonga), the gemstone of Mars](https://i0.wp.com/astroshala.com/wp-content/uploads/2017/07/Red-Coral-e1500238289616.jpg?resize=250%2C250&ssl=1) [Red Coral (Moonga)](https://astroshala.com/gemstones/red-coral-moonga/) Mars Precious coral · Tuesday · gold, ring finger Mars’s gem, formed from the hard skeletons of tiny sea creatures, the coral polyps. It suits Aries, Scorpio, Cancer, Leo, Sagittarius, and Pisces ascendants when Mars needs strength. It does not cancel Mangal dosha. [Read the red coral guide →](https://astroshala.com/gemstones/red-coral-moonga/) ![Emerald (panna), the gemstone of Mercury](https://i0.wp.com/astroshala.com/wp-content/uploads/2017/07/Emerald-e1500238226947.png?resize=250%2C250&ssl=1) [Emerald (Panna)](https://astroshala.com/gemstones/emerald-panna/) Mercury Beryl · Wednesday · gold, little finger Mercury’s gem, for clear thinking, speech, studies, and trade. Gemini, Virgo, Taurus, and Libra ascendants wear it most. Most emeralds are clarity-enhanced with oil or resin, so the lab report should state the treatment and its degree. [Read the emerald guide →](https://astroshala.com/gemstones/emerald-panna/) ![Yellow sapphire (pukhraj), the gemstone of Jupiter](https://i0.wp.com/astroshala.com/wp-content/uploads/2017/07/Yellow-Sapphire-e1500238349529.png?resize=250%2C250&ssl=1) [Yellow Sapphire (Pukhraj)](https://astroshala.com/gemstones/yellow-sapphire-pukhraj/) Jupiter Corundum · Thursday · gold, index finger Jupiter’s gem, for judgement, teachers, children, and savings. Sagittarius, Pisces, Aries, Leo, and Scorpio ascendants are the usual wearers. Yellow topaz is often sold as “pukhraj”, but it is a different stone. [Read the yellow sapphire guide →](https://astroshala.com/gemstones/yellow-sapphire-pukhraj/) ![Diamond (heera), the gemstone of Venus](https://i0.wp.com/astroshala.com/wp-content/uploads/2017/07/Diamond-e1500238328542.png?resize=250%2C250&ssl=1) [Diamond (Heera)](https://astroshala.com/gemstones/diamond-heera/) Venus Diamond · Friday · gold or platinum, ring or little finger Venus’s gem, for marriage, comfort, and the arts. Taurus, Libra, Capricorn, and Aquarius ascendants wear it most. A lab-grown diamond looks identical, so the grading report must say “natural”. [Read the diamond guide →](https://astroshala.com/gemstones/diamond-heera/) ![Blue sapphire (neelam), the gemstone of Saturn](https://i0.wp.com/astroshala.com/wp-content/uploads/2017/07/Blue-Sapphire-e1500238369604.png?resize=250%2C250&ssl=1) [Blue Sapphire (Neelam)](https://astroshala.com/gemstones/blue-sapphire-neelam/) Saturn Corundum · Saturday · gold, silver, or panchdhatu, middle finger Saturn’s gem, and the one always tried for a few days before it is set. Taurus, Libra, Capricorn, and Aquarius ascendants are the usual wearers; Cancer, Leo, and Pisces ascendants avoid it. It does not cancel Sade Sati. [Read the blue sapphire guide →](https://astroshala.com/gemstones/blue-sapphire-neelam/) ![Hessonite (gomed), the gemstone of Rahu](https://i0.wp.com/astroshala.com/wp-content/uploads/2017/07/Hessonite-e1500238307463.jpg?resize=250%2C250&ssl=1) [Hessonite (Gomed)](https://astroshala.com/gemstones/hessonite-gomed/) Rahu Grossular garnet · Saturday · silver, iron, or alloy, middle finger Rahu owns no sign, so hessonite is judged from Rahu’s house, companions, and period. It is most often considered when Rahu sits in the 3rd, 6th, 10th, or 11th house, and it is never worn with cat’s eye. [Read the hessonite guide →](https://astroshala.com/gemstones/hessonite-gomed/) ![Cat’s eye (lahsuniya), the gemstone of Ketu](https://i0.wp.com/astroshala.com/wp-content/uploads/2017/07/Cats-Eye-e1500238248958.png?resize=250%2C250&ssl=1) [Cat’s Eye (Lahsuniya)](https://astroshala.com/gemstones/cats-eye-lahsuniya-lehsuniya/) Ketu Chrysoberyl · Tuesday · silver, steel, or alloy, ring finger Ketu’s gem, judged like hessonite from its placement and period, most often in the 3rd, 6th, or 11th house. True lahsuniya is chrysoberyl; quartz cat’s eye is a weaker substitute, and fibre-optic glass is a fake. [Read the cat’s eye guide →](https://astroshala.com/gemstones/cats-eye-lahsuniya-lehsuniya/) At a glance ## Which Gemstone for Which Planet The gem for each planet comes from one Sanskrit verse, quoted below. The day, metal, finger, and weight come from practice, and practice varies; the figures here are the ones our gem guides follow. | Planet | Gemstone | Day | Metal | Finger | Our usual weight | | --- | --- | --- | --- | --- | --- | | Sun | Ruby (Manik) | Sunday | Gold | Ring | 4.25 to 5.25 ratti | | Moon | Pearl (Moti) | Monday | Silver | Little | 6.25 ratti | | Mars | Red coral (Moonga) | Tuesday | Gold | Ring | 6.25 ratti | | Mercury | Emerald (Panna) | Wednesday | Gold | Little | 5.25 to 6.25 ratti | | Jupiter | Yellow sapphire (Pukhraj) | Thursday | Gold | Index | 5.25 ratti | | Venus | Diamond (Heera) | Friday | Gold or platinum | Ring or little | 1.25 to 4.25 ratti | | Saturn | Blue sapphire (Neelam) | Saturday | Gold, silver, or panchdhatu | Middle | 3.25 to 4.25 ratti | | Rahu | Hessonite (Gomed) | Saturday | Silver, iron, or an alloy | Middle | 5.25 to 6.25 ratti | | Ketu | Cat’s eye (Lahsuniya) | Tuesday | Silver, steel, or an alloy | Ring | 3.25 to 4.25 ratti | One ratti is about 0.91 carat. The ring usually goes on the right hand, in the planet’s hour on its own day. Rahu and Ketu have no weekday of their own, so hessonite is usually worn on a Saturday and cat’s eye on a Tuesday, though some families choose other days. The weights are starting points: the chart and the quality of the stone set the final weight. The jeweller’s rule of one ratti for every 10 kg of body weight is a market convention, not a rule of the texts. The texts ## Why Each Planet Has Its Own Gemstone In Jyotish each of the nine planets (*graha*) carries a colour, a metal, a grain, a weekday, and a gem. The list of nine gems, the [navaratna](https://en.wikipedia.org/wiki/Navaratna), that astrologers follow today comes from a single verse in Vaidyanātha’s *Jātaka Pārijāta*: Jātaka Pārijāta 2.21 माणिक्यं दिननायकस्य विमलं मुक्ताफलं शीतगोः माहेयस्य च विद्रुमं मरकतं सौम्यस्य गारुत्मकम् । देवेज्यस्य च पुष्परागमसुराचार्यस्य वज्रं शनेः नीलं निर्मलमन्ययोश्च गदिते गोमेदवैडूर्यके ॥ २१ ॥ māṇikyaṁ dinanāyakasya vimalaṁ muktāphalaṁ śītagoḥ māheyasya ca vidrumaṁ marakataṁ saumyasya gārutmakam | devejyasya ca puṣparāgamasurācāryasya vajraṁ śaneḥ nīlaṁ nirmalamanyayośca gadite gomedavaiḍūryake || 21 || **Meaning:** Ruby belongs to the lord of the day [the Sun]; a flawless pearl to the cool-rayed Moon; coral to Mars; emerald to Mercury; yellow sapphire to Jupiter; diamond to the preceptor of the asuras [Venus]; a clear blue sapphire to Saturn; and hessonite and cat’s eye are declared for the remaining two [Rāhu and Ketu]. The verse names emerald twice, as *marakata* and *gārutmaka*, both words for the same stone. Notice the two words it adds about quality: the pearl is *vimala*, flawless, and the blue sapphire *nirmala*, clear. The gem asked for is a clean one. Some printings give a different first line, praising a flawless ruby of good origin for the Sun; the planet-to-gem list is the same in both. In the tradition, a gem gathers the light of its planet and passes it to the wearer, the way a lens gathers sunlight onto one spot. A lens does not choose what it burns, and the tradition holds that a gem, likewise, strengthens its planet whatever that planet means for you. That is why the choice has to come from your chart. The [*Garuḍa Purāṇa*](https://www.wisdomlib.org/hinduism/book/the-garuda-purana-dutt/d/doc122548.html) opens its chapters on gems with their origin. The asura Vala (Bala in some readings) had conquered Indra himself. At a sacrifice the gods asked him, half in jest, to stand as the sacrificial animal; Vala gave his word and let himself be bound to the stake, and the gods turned the jest into earnest. His body, sanctified by the sacrifice, broke into the seeds of gems, and as the gods carried them off in their aerial chariots, some fell to earth. Wherever a seed landed, in sea, river, mountain, or forest, a mine of that gem arose. The story is the tradition’s way of saying that a *ratna* is a gift of the earth, not of the workshop. Gems were never the first remedy. Parāśara’s remedies for a troubled planet are recitation, fire offering, charity, and worship of the planet’s deity, and they cost little. A gem is a costly remedy and an optional one: no chart is incomplete without one, and many charts never need one. Before you buy ## Choose a Gemstone by Your Chart, Not Your Moon Sign The common question is “which stone is lucky for my rashi?” It sounds sensible and is the wrong question. Your Moon sign shows where the Moon sits; it does not show which planets rule the good and the difficult houses of your chart, so two people with the same Moon sign can need opposite gems. The month-wise birthstones sold in jewellery shops come from a Western custom and have no place in Jyotish. A minority of astrologers also weigh the Moon sign, but most, and AstroShala, begin from the ascendant (*lagna*). Strengthen Usually considered for strengthening The lords of the ascendant, the fifth house, and the ninth house, and the *yogakāraka*, a planet that rules both an angle and a trine: Saturn for Taurus and Libra ascendants, Mars for Cancer and Leo, and Venus for Capricorn and Aquarius. Caution Usually avoided In most traditions, the lords of the sixth, eighth, and twelfth houses. Strengthening the planet strengthens what those houses bring: debt and dispute, obstacles, and loss. Next comes the planet’s own condition: its sign, its house, its aspects, and its strength in the navamsa. A good planet that is weak may need support; a good planet that is already strong may need no gem at all. Last comes the planetary period (*daśā*). In the tradition’s experience, a gem for the planet whose period you are running, or are about to enter, shows its effect most clearly. The table below gives the common traditional recommendations for each ascendant. It is not an individual prescription: astrologers differ in how they weigh house lordship, the planet’s condition, aspects, the navamsa, and the running period. | Ascendant | Gems usually considered | Gems usually avoided | | --- | --- | --- | | Aries | Red coral, ruby, yellow sapphire | Emerald | | Taurus | Diamond, blue sapphire, emerald | Red coral, yellow sapphire | | Gemini | Emerald, diamond; blue sapphire with care | Red coral | | Cancer | Pearl, red coral; yellow sapphire with care | Emerald, blue sapphire | | Leo | Ruby, red coral, yellow sapphire | Pearl, blue sapphire | | Virgo | Emerald, diamond; blue sapphire with care | Ruby, red coral | | Libra | Diamond, blue sapphire, emerald | Yellow sapphire | | Scorpio | Red coral, pearl, yellow sapphire | Emerald, diamond | | Sagittarius | Yellow sapphire, ruby, red coral | Pearl, diamond | | Capricorn | Blue sapphire, diamond; emerald with care | Ruby, yellow sapphire | | Aquarius | Blue sapphire, diamond; emerald with care | Pearl | | Pisces | Yellow sapphire, pearl, red coral | Ruby, diamond, blue sapphire | “Usually considered” is a starting point, not a prescription: the planet’s strength, the navamsa, and the running period still decide. Hessonite and cat’s eye are judged from where Rahu and Ketu sit, not from the ascendant. Already wearing a gemstone? A stone chosen by Moon sign alone, or on a seller’s advice, may strengthen a planet your chart does not call for. Ask A Question can tell you, from your birth chart, whether the gemstone you wear suits you, with the reasoning, and what to do if it does not. [Ask your question](https://astroshala.com/product/ask-a-question/) Several questions? [Detailed 3 Questions report](https://astroshala.com/product/detailed-3-questions-online-astrology-consultation/). Cautions ## When a Gemstone Can Do Harm The same ruby that steadies a Leo native, whose Sun rules the ascendant, strengthens the lord of the eighth house for a Capricorn ascendant. The stone has not changed. The chart has. A blue sapphire for a Cancer ascendant, where Saturn rules the seventh and eighth houses, is the same kind of mistake: a gem chosen by its reputation rather than by the houses its planet rules. Other mistakes are just as common: - Wearing the gems of planets that are natural enemies together, such as ruby with blue sapphire, or ruby with diamond. - Wearing blue sapphire straight away, without the customary trial of a few days. - Buying a gem out of fear, because someone said your chart is in danger. A remedy chosen in panic is usually the wrong one. - Wearing a cracked, lustreless, or flawed stone. The *Agni Purāṇa*, in its chapter on testing gems, says such stones should not be worn at all. If, soon after you start wearing a gem, things take a marked turn for the worse in the areas its planet rules, take it off and have the chart checked again. Combinations ## Can You Wear Two Gemstones Together? Yes, when both planets suit your chart. A common approach, and the one our gem guides follow, sorts the gems into two groups by the natural friendships of the planets: - **Ruby, pearl, red coral, and yellow sapphire** (the Sun, Moon, Mars, and Jupiter) are worn with one another. - **Emerald, diamond, and blue sapphire** (Mercury, Venus, and Saturn) are worn with one another. Hessonite usually goes with this group, since Rahu is said to act like Saturn. Followers of this approach generally do not mix gems from the two groups, and custom never pairs hessonite with cat’s eye. Other astrologers judge each pair from the chart alone. Authenticity ## Natural, Treated, Lab-Grown, and Imitation Gemstones - **Natural:** formed in the earth, then cut and polished. Many natural gems are heated to improve their colour, an old and accepted practice, as long as it is disclosed. - **Treated:** natural stones changed more heavily: rubies filled with lead glass, emeralds filled with resin, coral dyed, sapphires coloured by diffusion. They can look fine and be worth a small fraction of a natural stone. - **Lab-grown:** made in a factory with the same chemistry as the natural gem. To a chemist it is real ruby or real diamond, but the earth did not form it. - **Imitation:** a different material made to look like the gem, such as glass, plastic, or garnet sold as ruby. Lab report ## How to Check a Gemstone Is Genuine - The report names the gem, for example “natural corundum, ruby”. - It states any treatment, such as heating, filling, or dyeing, or says that none was found. - The weight, measurements, and photograph match the stone in your hand. - The report number can be looked up on the laboratory’s own website. Shops in India often speak of “natural” and “cultured” as if those were the only two choices. The word “cultured” is correct only for pearls: a cultured pearl is a real pearl grown after a farmer seeds the oyster. When a seller calls a ruby or an emerald “cultured”, he means lab-grown. The tradition asks for natural stones. Varāhamihira gives four chapters of his *Bṛhat Saṁhitā* to judging gems and pearls by their colour, lustre, and flaws, the way a vaidya judges a herb by where and how it grew. A good natural stone with a reliable report also tends to hold its value; lab-grown stones usually resell for far less. In fairness, lab-grown and natural stones are chemically the same, and no study has measured whether one works better as a remedy. AstroShala recommends natural stones because the tradition does, and because a buyer who pays for a natural stone deserves to receive one. The *Garuḍa Purāṇa* tells the buyer to have a gem tested by an expert before buying or wearing it, and the advice still holds. There is no reliable home test; the proof is a report from a recognised gem laboratory, such as the Gem Testing Laboratory in Jaipur, the Gemmological Institute of India in Mumbai, IGI, or GIA. Be careful with a price far below the market rate, a seller who offers only his own certificate, or a large coloured stone that is perfectly clean: natural gems usually carry tiny inclusions, so such a stone is a reason to ask questions, though not proof of a fake. Dropping a stone in water or milk, rubbing it on paper, or holding a flame to it tells you nothing, and heat can ruin a treated stone. For pearls, jewellers use a rough first check: rubbed gently against the front teeth, a real pearl usually feels slightly gritty and an imitation smooth. It is a hint, not proof, and it cannot tell a natural pearl from a cultured one. First wear ## How to Energise and Wear a Gemstone Before a gem is first worn, it is cleansed and dedicated to its planet in a short rite (*prāṇa pratiṣṭhā*). What follows is one customary procedure. Families and teachers differ in the details, and your own teacher’s practice comes first. 1. Choose the planet’s weekday, preferably in the bright half of the lunar month (*śukla pakṣa*), and the planet’s hour on that day. 2. Bathe, and sit facing east before your home shrine. 3. Dip the ring briefly in unboiled cow’s milk with a little Gangajal, then rinse it in clean water. As a matter of gem care, pearl, coral, and emerald are only dipped or wiped, never soaked. 4. Place it on a cloth in the planet’s colour, with a ghee lamp, incense, and flowers. 5. Chant the planet’s mantra 108 times on a [mala](https://astroshala.com/japa-mala/). Each gem guide gives three mantras in Sanskrit. 6. Wear the ring on the right finger while the planet’s hour is still running, and give a small charity linked with the planet the same day if you can. The planetary hour (*horā*) is counted from local sunrise. The first hour of each day belongs to the lord of that day, so the first hour after sunrise on a Sunday is the Sun’s; most panchangs and many phone apps list the day’s hours. Care ## Is Your Gemstone Working? No instrument measures what a gem is doing, and anyone who promises a fixed result by a fixed date promises more than the tradition does. Before you wear the gem, note where things stand in the areas its planet rules, then watch the same areas over the following weeks. Those who wear gems usually describe change as gentle, matters moving more smoothly rather than sudden luck, and it shows most clearly during that planet’s period. A gem that seems to do nothing has not necessarily failed; it may be the right gem in a quiet period. Repeat the energising rite once a year on the planet’s day, and again after a repair or a long break. - Have the ring made open at the back, so the stone touches the skin. - Check the claws every few months; a loose stone is soon a lost stone. - Clean ruby, sapphire, and diamond in warm water with mild soap and a soft brush. - Keep pearl and coral away from perfume, soap, and acids, and keep emerald away from heat and ultrasonic cleaners. - Store each ring on its own, so harder stones do not scratch softer ones. Related ## Other Remedies on AstroShala - [Yantras](https://astroshala.com/yantras/): planetary and deity yantras, and how to install and keep one. - [Japa Mala](https://astroshala.com/japa-mala/): the rosary for each planet and how to use it in mantra practice. - [Rudraksha](https://astroshala.com/rudraksha/): the beads by number of faces, the planets traditionally linked to them, and how to wear one. - [Nakshatra Trees and Jadi](https://astroshala.com/nakshatra-trees/): the tree of your birth star, and the roots worn for the nine planets. Questions ## Gemstone FAQs **Which gemstone should I wear?** **The gem of a planet that rules good houses for your ascendant and needs strength in your chart.** That is usually the ascendant lord, the lord of the fifth or ninth house, or a yogakaraka; the running period decides which of them, if any, needs a gem now. **Can I choose a gemstone by my rashi or date of birth?** **Not safely.** Your rashi is your Moon sign, and month-wise birthstones are a Western custom; neither shows which planets rule the good or difficult houses of your chart. **Is a lab-grown gemstone acceptable in astrology?** **The tradition says no.** A lab-grown stone is chemically the same, but it is not what the tradition prescribes, and it should never be sold to you as natural. **How long does a gemstone take to show results?** **There is no fixed time.** Many astrologers watch for a few weeks after wearing, and the effect shows most clearly during the planet’s own period. **Do I need to take my gemstone ring off at night?** **No.** The ring can be worn day and night. Take it off for heavy work, swimming, or cleaning with chemicals. **Can I wear a gemstone without consulting an astrologer?** **It is not advisable.** The same gem strengthens a good house lord for one ascendant and a difficult one for another, and only the full chart shows which. Consultation ## Not Sure Which Gemstone Suits You? A gem serves a planet your chart actually calls for, in the period when it is needed. If you are unsure which planet that is, or whether you need a gem at all, AstroShala consultations read the whole chart first and tell you plainly when a mantra or charity will serve you better than a stone. [Book a 30-Minute Consultation](https://astroshala.com/product/30-min-tele-talk-consultation/)[Ask 3 Detailed Questions](https://astroshala.com/product/detailed-3-questions-online-astrology-consultation/) Gemstones are worn as a traditional astrological remedy, not as a treatment for any illness. For any health concern, please consult a qualified doctor. ## Texts Referred To - Daivajña Vaidyanātha, *Jātaka Pārijāta*, with Hindi commentary, Chaukhambha Sanskrit Sansthan, Varanasi, Ch. 2, v. 21 - Parāśara, *Bṛhat Parāśara Horā Śāstra*, trans. R. Santhanam (Vol. 1) and G. S. Kapoor (Vol. 2), Ranjan Publications - Varāhamihira, *Bṛhat Saṁhitā*, trans. N. Chidambaram Iyer (1884), Chs. 80 to 83 - *Garuḍa Purāṇa*, Pūrva-khaṇḍa, Chs. 68 to 80, on gems, trans. M. N. Dutt (1908) - *Agni Purāṇa*, trans. N. Gangadharan, Motilal Banarsidass, Ch. 246, on the testing of gems