Bring together the beauty of Amethyst and the symmetry of sacred geometry with this Amethyst Platonic Set 5pc. The set includes five polished geometric shapes: a tetrahedron, cube, octahedron, dodecahedron and icosahedron.

Amethyst is the purple variety of quartz, valued for its violet colouring and natural variations. Polishing reveals the stone’s internal character, which may include colour zoning, translucent areas and delicate inclusions. Each set offers its own combination of shades and patterns.

The five Platonic solids are distinctive mathematical forms. Each has identical regular polygon faces, with the same number of faces meeting at every vertex. These carved shapes offer a hands-on way to explore geometry, alongside the elemental symbolism used in sacred geometry and crystal practice.

The Five Shapes and Their Meanings

Tetrahedron — Fire
With four triangular faces, the tetrahedron represents movement, motivation and new beginnings in sacred geometry. Use it as a focus when setting an intention, exploring a creative idea or reflecting on your next step.

Cube — Earth
The cube has six square faces and a stable, balanced structure. Symbolically associated with grounding, foundations and consistency, it offers a reminder to give your ideas practical support.

Octahedron — Air
Eight triangular faces form a shape resembling two pyramids joined at their bases. Associated with thought, communication and perspective, the octahedron provides a focus for reflection and considering different viewpoints.

Dodecahedron — Ether or Spirit
Made from twelve pentagonal faces, the dodecahedron has a particularly intricate appearance. Its symbolic association with the cosmos makes it a thoughtful choice for meditation, spiritual exploration and contemplating the wider picture.

Icosahedron — Water
Twenty triangular faces give the icosahedron a rounded appearance. In sacred geometry, it represents flow, adaptability and creativity. Use it as a visual reminder to make room for change and approach new experiences with flexibility.

These elemental meanings are traditional symbolic associations.

Why Add This Set to Your Collection?

• Collect all five Platonic solids: Compare their faces, edges and symmetry in one coordinating stone.
• Enjoy Amethyst’s natural character: Explore variations in purple colouring, translucency and internal patterns.
• Introduce sacred geometry to your practice: Choose individual shapes for meditation, intention setting or crystal grids.
• Create an attractive display: Arrange the five forms together on a shelf, desk or meditation space.
• Give a thoughtful gift: A suitable choice for someone interested in crystals, geometry or symbolic objects.

Mineral Composition

Amethyst is a variety of quartz. Its purple colour is associated with iron-related defects in the crystal structure and natural irradiation.

Chemical Formula: SiO₂
Crystal System: Trigonal
Form: Carved and polished geometric solids; these shapes are not Amethyst’s natural crystal habit.

Metaphysical Properties

In crystal practice, Amethyst is traditionally associated with quiet reflection, spiritual awareness and intuition. It is often chosen for meditation and for creating a space dedicated to stillness and personal intention.

Combined with the five Platonic solids, Amethyst offers different visual points of focus. You might choose the cube when reflecting on foundations, the tetrahedron for a new intention, or the dodecahedron when exploring your spiritual practice.

Chakra

Third Eye and Crown.

Zodiac

Aquarius and Pisces.

Element

Air. The individual shapes also carry the elemental symbolism described above.

Crystal Pairings

Clear Quartz: To accompany intentions centred on clarity and focus.
Smoky Quartz: For a symbolic balance between reflection and grounding.
Rose Quartz: For intentions involving compassion and kindness.

What Is Included?

One five-piece Amethyst set containing:

• Tetrahedron
• Cube
• Octahedron
• Dodecahedron
• Icosahedron

We will intuitively choose a set for you. Colour, clarity, inclusions and natural markings will vary between pieces.

Hardness and Care

Hardness: 7 on the Mohs scale.

Clean gently with a soft cloth. Avoid prolonged direct sunlight, which can fade Amethyst, and protect the polished points and edges from knocks.

Shipping Information

We offer reliable and carefully managed delivery services to ensure your order arrives safely and securely.

Royal Mail Tracked 48 — £3.80
Available for smaller parcels weighing up to 2kg, with an estimated delivery time of 2–3 working days after dispatch.

DHL / DPD Courier Delivery — £6.87
Available for UK mainland deliveries weighing up to 20kg, providing a reliable service for larger or heavier orders.

All orders are carefully packaged to protect your specimens during transit.

Shipping options and applicable charges are confirmed at checkout.

Thank you for choosing GeoFossils.