A sixteenth-century magician spent a Tuesday morning hammering a design into a sheet of lead. The sheet had been cut at the right hour, during the planetary hour of Mars, and the design was not his invention — it came from a book he had copied by hand, page by page, from a manuscript he had risked travel to Venice to see. That design was a planetary seal, and he believed it would make Mars speak to him.
Planetary seals are symbolic diagrams associated with the seven classical planets, used in ceremonial magic to invoke the influence of a celestial body. Each seal is constructed from the numerical square of its planet, combined with specific letters and names drawn from Kabbalistic and grimoire traditions. Their primary purpose is to serve as a focal point for concentration, ritual invocation, and the consecration of talismans.
Where Do These Seals Come From?
The earliest surviving planetary seals in Western occultism appear in the Key of Solomon, a grimoire dated by scholars to the 14th or 15th century, though it circulated widely in manuscript form for centuries before its first printed edition (1888, translated by S. L. MacGregor Mathers). The Key includes plates for each planet, with the seal to be inscribed on the appropriate metal and consecrated under the correct astrological condition.
But the intellectual roots go deeper. Heinrich Cornelius Agrippa’s Three Books of Occult Philosophy (1531–1533) systematized the correspondences: he gave the magic squares (the Kamea), the planetary spirits and intelligences, and the angelic names whose letters compose the seals. Agrippa drew on earlier Arabic sources, particularly the Picatrix (the Latin translation, 1256, of the Ghāyat al-Ḥakīm), which taught the astrological timing and purification required for such work.
The seals themselves are not arbitrary. They derive from the planetary squares — grids of numbers where each row, column, and diagonal sums to the same total. For Saturn, a 3×3 square summing to 15; for Jupiter, 4×4 summing to 34; for Mars, 5×5 summing to 65; for the Sun, 6×6 summing to 111; for Venus, 7×7 summing to 175; for Mercury, 8×8 summing to 260; for the Moon, 9×9 summing to 369. From these squares, the magician extracts the letters of Hebrew or Latin names (spirits, intelligences, or divine names) by counting the cells. The seal is the geometric arrangement of those letters, often enclosed in a circle or a hexagram.
The Hebrew tradition — specifically the Sefer Raziel HaMalakh (Book of Raziel the Angel), contributed the concept of the Kamea (magic square) as a tool for divine names. Christian Kabbalists in the Renaissance merged this with Hermetic astrology, producing the system that survives in modern ceremonial magic.
Historical consequence: The seals were not mere diagrams. A practitioner who engraved a seal without the correct materials, at the wrong hour, risked nothing happening, or worse, attracting an unaligned force. The system demanded precision, and the grimoires warned that sloppiness could unsettle the user’s mind.
What Does Each Seal Represent?
Every planetary seal is a compressed statement of that planet’s nature, encoded in number, letter, and shape.
- Saturn’s seal uses the 3×3 square. Its numbers correspond to restriction, time, and boundaries. The seal is often drawn on lead, a metal that tarnishes and resists change.
- Jupiter’s seal gets the 4×4 square, the number of stability and expansion. The seal includes the name of the spirit Hismael or the intelligence Yophiel, depending on the grimoire.
- Mars uses 5×5, the number of conflict and force. The metal is iron. The seal often incorporates the name Graphiel (intelligence of Mars) and Bartzabel (spirit of Mars).
- The Sun (6×6) is the seal of kingship. The metal is gold or yellow brass. The intelligence Nakhiel and spirit Sorath appear in Agrippa’s arrangement.
- Venus (7×7) rules love and harmony, engraved on copper. The names Hagiel and Kedemel are common.
- Mercury (8×8) governs communication, trade, and cunning. Its metal is quicksilver in theory, tin or an alloy in practice. The spirit Taphthartharath is invoked.
- The Moon (9×9) deals with dreams, emotion, and the hidden. Its metal is silver. The intelligence Malkah be-Tarshishim and spirit Shad Barshemoth are named.
Seals from different grimoires sometimes vary in the names used, but the underlying numerical square remains consistent. The seal is not considered a portrait of the planet, it is a handle. The practitioner turns the handle to open a door.
How Are Planetary Seals Used in Practice?
The seal appears in two contexts: as a ritual tool and as a talismanic charge.
In ritual: The seal is placed on the altar or drawn in the air with the wand. The magician stands before it, performs the banishing and invoking rituals of the appropriate planet, and addresses the planet’s intelligence or spirit by the names encoded in the seal. The seal serves as the spatial anchor, the point where celestial force enters the room. We light ours in a fireproof bowl on the balcony, using a charcoal disk under the metal sheet, but that is a modern adaptation. Older grimoires require the seal to be consecrated with the fumigation of the planet’s incense (saffron for Jupiter, red sandalwood for Mars, etc.) and anointed with the appropriate oil.
As a talisman: The seal is engraved on the planetary metal, often as a pendant or a small plate. The magician consecrates it during the planetary hour and day, then wears it or keeps it in a silk bag. The purpose is to attract the planet’s influence into daily life, Jupiter for prosperity, Venus for love, Mercury for persuasive speech, Mars for courage in a legal battle. The seal is not the talisman itself; the talisman is the charged object that incorporates the seal.
The timing matters more than most modern accounts admit. Each planet rules a specific day (e.g., Sunday for the Sun, Monday for the Moon) and a specific hour within that day (planetary hours change with sunrise and sunset). The practitioner must calculate the hour using an ephemeris or an hour-table. We skip this step sometimes for speed, and the result is a seal that feels inert. The grimoires were not being pedantic, the hour is the conduit.
Planetary Seals vs. Other Sigils
Planetary seals are often confused with planetary sigils derived from spirit names using the wheel of the Ars Paulina or the Abaroth method. That later method produces a monogram-like drawing, not a structured grid. Seals are also distinct from zodiacal seals or angelic seals, which follow different numerological rules.
The difference is structural: a planetary seal embeds the entire magic square and the names that emerge from it. A spirit sigil is a single compressed signature, used for evoking that specific entity. In the context of the Key of Solomon, the planetary seal is used before the conjuration, to establish the sphere of operation. The spirit’s personal seal comes into play during the conjuration itself.
Notable figures who systematized planetary seals: Agrippa (De Occulta Philosophia, 1533), Francis Barrett (The Magus, 1801), and Éliphas Lévi (Dogme et Rituel de la Haute Magie, 1854–56) each added variations. Barrett’s seals, in particular, became popular in nineteenth-century English ceremonial magic, and they differ slightly from Agrippa’s. The Golden Dawn later modified them again, introducing the Rose Cross layout.
What People Get Wrong About Planetary Seals
A common misunderstanding is that the seal is a universal symbol everyone can use with the same result. In practice, the vibratory quality of the names depends on the language used, Hebrew, Latin, or one of the Enochian variations, and the practitioner’s own attunement. No two magicians ever engrave the same seal with the same charge.
Another error: treating the seal as a ready-made good luck charm. The seal is a tool for an active operation, not a passive amulet. A piece of printed paper with the seal drawn on it, consecrated with attention and intention, can work. But a hastily copied image from the internet, stuck in a wallet, is a piece of paper.
Some modern sources claim the seals are original to ancient Egypt or Babylon. They are not. The earliest known forms appear in medieval Jewish mystical texts, and the specific arrangements used today are no older than the Renaissance.
Finally, people think the seals are “dark” or “demonic.” They are not. They are tools for working with natural forces, the same forces that astrologers have mapped for millennia. A planetary seal is no more demonic than a compass.
FAQ
Are planetary seals the same as sigils? No. Sigils are usually monograms of a specific spirit’s name. Planetary seals are geometric diagrams derived from magic squares and encompass the whole planet’s influence, not a single spirit.
Do I need to be initiated to use planetary seals? Not formally, but a working knowledge of astrology, ritual timing, and purification practices is essential. Using a seal without understanding its correspondences can produce confusion or no result.
Which metal should I use for each seal? Lead for Saturn, tin for Jupiter, iron for Mars, gold for the Sun, copper for Venus, quicksilver or tin for Mercury, silver for the Moon. If the exact metal is unavailable, draw the seal on parchment with the appropriate color of ink (black for Saturn, blue for Jupiter, etc.).
How long does a consecrated seal remain active? It depends on maintenance. A seal worn regularly and cleansed (by passing through incense or placing under moonlight) can last years. A neglected seal gradually loses its charge.
The seals are not artifacts of a dead tradition. They remain in use among practitioners of planetary magic, theurgy, and astrological talismanic work. If you wish to deepen your study, explore the planetary magic guide on Le Grand Grimoire, or look up the comparison of planetary spirits and intelligences in our glossary. The seal is a door, and every door opens to a room that someone before you has entered and described. You are not the first to hold the handle, and you will not be the last.
Explore the planetary magic hub
View the glossary entry for planetary spirits
Read our guide on consecrating talismans