Your number comes from your date of birthTake the day you were born and reduce it to a single digit. Born on the 1st, 10th, 19th or 28th, your number is 1. The 2nd, 11th, 20th and 29th give 2, and so on through the month. This is the psychic or birth number — the one most people mean when they say my number. Numerologists also work with a destiny number from the full date and a name number from the spelling of your name, and the reading is strongest when all three agree. For choosing a stone, the birth number is enough.The classical tableIndian tradition pairs each number with a planet and a gem — the navaratna, nine gems for nine planets. One is the Sun and ruby. Two, the Moon and pearl. Three, Jupiter, yellow sapphire. Four, Rahu, hessonite. Five, Mercury, emerald. Six, Venus, diamond. Seven, Ketu, cat's eye. Eight, Saturn, blue sapphire. Nine, Mars, red coral.Those nine stones are astrological prescriptions, and several cost more than a piece of furniture. That is why almost nobody wears them casually — and why the tradition developed a second tier: semi-precious stones that carry the same planetary association at a price you can wear every day. Rose quartz and sodalite for Venus. Pyrite for Saturn. Tulsi for Rahu. Same number, same planet, an honest stone.Six — Venus — rose quartz and sodaliteVenus governs love, beauty and harmony, which makes six the nurturing number. Classical tradition prescribes diamond. We use two stones for it instead.Rose quartz is translucent pink with a soft internal cloud that is the stone itself, not a flaw. It is the piece most people buy first, and the one we recommend when you are unsure. Rose-Quartz Aura-Healing Pendant.Sodalite is the stone of truth and logic — deep blue with white veining, and the calm, balancing half of Venus. It is tied to the throat, where clear and honest speech begins, and to the third eye, where intuition and clear thinking meet. Practitioners reach for it when the mind is tangled: it is said to cut through confusion, settle panic, and let a person say the plain thing rather than the pleasing one. It carries air and water — intellect and feeling in the same stone — and is known as a stone of comradeship, which is why it is often worn in company rather than alone. 7-Chakra Sodalite Pendant, with the pattern carried across a single piece rather than a set of seven.Its planetary associations differ by system, and each reads the same stone differently. In our house sodalite sits under Venus, number 6 — Venus governs harmony, beauty and balance, and sodalite is the settling half of that pairing: the stone that keeps the peace rather than chasing it. Other traditions give it to Ketu, the planet of detachment and inner quiet, because its work is inward — cutting through mental noise instead of pursuing anything. Others again place it with Saturn, or Shani, the taskmaster of discipline and patience, which suits a stone of logic and structure. And in some systems it is also tied to number 4, the number of foundations and order. Four readings, one stone, and they do not really contradict each other: Venus for balance, Ketu for quiet, Saturn for discipline, four for structure. Whichever number you carry, the stone is doing the same work.Seven — Ketu — cat's eyeKetu is the planet of detachment, intuition and inner quiet, and seven is the introspective number. Tradition gives it cat's eye, and that is a stone we do not currently make — so if seven is your number, we would rather say so than sell you something and call it a match.Eight — Saturn — pyriteSaturn governs discipline, endurance and material success, and eight is the number of abundance and power. Tradition prescribes blue sapphire, the most feared and most powerful stone in the classical system. Pyrite is the honest alternative: metallic clusters that catch light like cut metal, tied in crystal practice to wealth and momentum. Raw pyrite is irregular by nature, so no two pieces are alike. Raw Pyrite Cluster Pendant and the Golden Pyrite Bracelet.Four — Rahu — tulsiRahu is ambition and material desire, and four is the number of stability and hard work. Tradition pairs it with hessonite, and — in the looser practice most people follow today — with tulsi beads. Tulsi is not a mineral at all; it is sacred in Indian households, and the beads carry that association rather than a planetary one. Tulsi Beads Bracelet is for anyone who want…