Gemstones are the most visible remedy in Vedic astrology, and the most often misused. In the tradition a gemstone does not "fix" a planet; it strengthens it. That is helpful when the planet is good for you, and harmful when it is not.
The nine gems
| Planet | Primary gem | Common substitute |
|---|---|---|
| Sun | Ruby (Manik) | Red garnet |
| Moon | Pearl (Moti) | Moonstone |
| Mars | Red coral (Moonga) | Carnelian |
| Mercury | Emerald (Panna) | Peridot, green tourmaline |
| Jupiter | Yellow sapphire (Pukhraj) | Citrine, yellow topaz |
| Venus | Diamond (Heera) | White sapphire, zircon |
| Saturn | Blue sapphire (Neelam) | Amethyst |
| Rahu | Hessonite (Gomed) | — |
| Ketu | Cat's eye (Lehsunia) | — |
The first rule: strengthen only friends
The key question is not "which planet is weak?" but "which planet is good for my ascendant?" A planet ruling kendras and trikonas from your Lagna (especially the Lagna lord, the 5th and 9th lords and the yogakaraka) is generally safe to strengthen. A planet ruling the 6th, 8th or 12th house generally is not: strengthening it can strengthen illness, conflict or loss.
For example, for a Taurus Lagna, Saturn is the yogakaraka and a blue sapphire may be suitable; for a Leo Lagna, Saturn rules the 6th and 7th and a blue sapphire is usually avoided.
Use extra care with
- Blue sapphire and the node stones (hessonite, cat's eye): they are considered fast and strong in effect. Traditionally they are tried on a trial basis before being worn permanently.
- Wearing gems for opposite friends at once, such as ruby with blue sapphire (Sun and Saturn).
Quality and wearing
- Natural, untreated stones are traditionally recommended, of adequate weight (often 3 to 7 carats for coloured stones, smaller for diamonds) and set so the stone touches the skin.
- Each gem has a traditional finger, metal, weekday and time to begin wearing, usually in the planet's hora on its weekday, with its mantra.
- Buy from a reputable laboratory-certified source.
Safer remedies first
Mantra, charity, fasting, worship and above all changes in conduct that reflect the planet's virtues are safe for everyone and need no prescription. For Saturn: discipline and service; for Jupiter: respect for teachers; for the Moon: care of the mother and of one's own mind.
Gemstones should be recommended only after a careful reading of the whole chart. Our Learn page explains how to follow remedies correctly, and a private consultation can tell you which, if any, gem is right for you.