Dramatic geological cave formation — the world beneath the earth

The Earth Has Always Known.

Reei & Co. was born from a belief that the most extraordinary things in the world are not made — they are found.

Hands holding a raw amethyst crystal geode — the beginning of Reei & Co.

Our Story

A World Built on Geological Wonder

Reei & Co. began with a single amethyst geode discovered in a market in São Paulo. Its cathedral formation, its depth of violet, its sheer geological improbability — it changed everything.

We have spent years building relationships with collectors, geologists and ethical miners across four continents. Every piece we carry has been held, considered and chosen — not for uniformity, but for the singular quality that makes it irreplaceable.

Our Philosophy

Not a Product. A Geological Event.

We do not manufacture. We do not replicate. Every formation in our collection is a one-of-a-kind object shaped by millions of years of geological process. When it finds its keeper, it is gone forever.

Rarity First

We only carry pieces that are genuinely rare — formations that cannot be replicated, specimens that exist nowhere else.

Ethical Sourcing

Every piece is sourced through relationships built on transparency. We know where each formation came from and who found it.

Geological Integrity

We never treat, dye or artificially enhance our stones. What you receive is exactly what the earth produced.

Where We Source

Four Continents. One Standard.

Our sourcing network spans the world's most significant geological regions — each chosen for the quality and character of its formations.

Geological mineral rock formation — the earth's mineral regions

South America

Brazil & Uruguay

The amethyst and quartz caves of southern Brazil and Uruguay produce some of the world's most spectacular cathedral formations. We work directly with small-scale ethical mining operations in the Rio Grande do Sul region.

Africa

Morocco & Madagascar

Morocco's Atlas Mountains yield extraordinary tourmaline and mineral specimens. Madagascar is home to some of the rarest rose quartz and labradorite formations on earth.

Asia

Himalayan Belt

The Himalayan geological belt — spanning Nepal, Tibet and northern India — produces high-altitude crystal formations of exceptional clarity and energy density.

Europe

Alpine Regions

The European Alps contain ancient mineral deposits that have been collected by geological enthusiasts for centuries. We source rare alpine quartz and calcite formations through trusted European collectors.

One Formation. One Keeper. One Story.

We believe that the right piece finds the right person. Our role is simply to bring them together — to be the bridge between the geological world and the human one.

Enter the Collection

Every piece currently available is waiting for its keeper.

Explore All Pieces