Birthstone by Birthday
Twelve months, twelve stones, twelve medicines. The birthstone tradition matches each month to a stone whose color and meaning have been read for centuries. Enter your date below to find yours.
Updated August 23, 2026: the traditional birthstone table with the meanings of the lapidaries.
The Twelve Stones
| Month | Stone | Color | Meaning |
|---|---|---|---|
| January | Garnet | deep red | protection on journeys, loyalty, and the fire of constancy |
| February | Amethyst | violet | clarity of mind, calm, and protection from excess |
| March | Aquamarine | sea blue | courage on the water, calm speech, and the clearing of fear |
| April | Diamond | white | invincibility, clarity, and the light that cannot be broken |
| May | Emerald | green | love, memory, and the growth of the heart |
| June | Pearl / Moonstone | white / silver-blue | purity, intuition, and the gentle wisdom of the moon |
| July | Ruby | red | vitality, passion, and the protection of the life force |
| August | Peridot | olive green | strength, release of the old, and the light of the sun in stone |
| September | Sapphire | deep blue | wisdom, truth, and the favor of the sky |
| October | Opal / Tourmaline | rainbow / pink-green | inspiration, hope, and the play of all colors |
| November | Topaz / Citrine | gold | warmth, abundance, and the sun's gold made solid |
| December | Turquoise / Zircon | blue-green | protection, good fortune, and the meeting of sky and earth |
What the Stone Carries
The birthstone tradition is one of the oldest continuous stone practices in the West. It traces to the twelve stones of the high priest's breastplate in the Book of Exodus, and to the twelve foundation stones of the New Jerusalem, and it was shaped into a monthly list by the medieval lapidaries, the stone books that read every gem's color, power, and proper use. The modern table was standardized in 1912 and has been revised since, but the meanings have barely moved: the stones were read for protection, healing, and character long before they were read for birth months.
Each stone carries both a color and a medicine. The color is the first layer: red stones carry fire and vitality, green stones growth and the heart, blue stones truth and the sky, gold stones the sun made solid. The medicine is the second layer: garnet for the traveler, amethyst for the mind, emerald for love, sapphire for wisdom, turquoise for protection. Reading your birthstone is reading both: the color you are drawn to and the medicine you are born with.
How to Use Your Stone
The traditional use is simple: wear the stone where it touches the skin, and let the color show. The stone is said to carry its meaning with you, and the practice is to keep it where you can see it, since attention is part of the work. A ring or a pendant is the classic setting; the stone can also be carried in a pocket or kept where you work.
The stone can also be used in the practical traditions of this library: the Correspondence Engine pairs stones with intentions, the Crystal Dictionary gives the full reading of every stone, and the Crystal Intent Matcher finds the stone for a specific goal. Your birthstone is the foundation of that work: the stone you are born with is the one that supports everything else you build with crystal.
Frequently Asked Questions
How do I find my birthstone?
Your birthstone is the stone assigned to your birth month in the traditional table: January is garnet, February is amethyst, March is aquamarine, and so on. Enter your birth date in the calculator to see your stone, its color, and its traditional meaning.
What is the meaning of my birthstone?
Each stone carries a traditional meaning: garnet protects journeys and holds loyalty, amethyst clears the mind, emerald grows love and memory, ruby protects vitality, sapphire brings wisdom, turquoise brings protection and good fortune. The meanings come from the old lapidaries, the stone lore of the medieval and classical world.
Why do some months have two birthstones?
June, October, and December have two traditional stones because the older lists and the modern lists differ: pearl and moonstone for June, opal and tourmaline for October, turquoise and zircon (or tanzanite) for December. Both are correct; choose the one that speaks to you, or wear both.
Where does the birthstone tradition come from?
The tradition traces to the breastplate of the high priest in the Book of Exodus, which held twelve stones, and to the twelve stones of the foundation of the New Jerusalem in Revelation. Medieval lapidaries matched the twelve stones to the twelve months, and the modern list was standardized in 1912 and revised since.
Can I wear my birthstone as jewelry?
Yes, and that is the traditional use: the stone worn on the body is said to carry its meaning with you. The practice is to wear it where it can touch the skin, and to choose the setting that lets the stone's color show, since the color is part of the medicine.
Sources
The monthly table follows the standard birthstone list (the 1912 standard and its revisions). The meanings follow the lapidary tradition of the medieval and classical world, consistent with the Crystal Dictionary and the Crystal Intent Matcher on this site.