A limited release — each stone selected by hand in Tanzania · Worldwide delivery
Merelani Hills · Tanzania · One place on earth

The Tanzanite Solstice Collection

Four pieces. Four stones, chosen one at a time at the foot of Kilimanjaro — from the hands that pulled them out of the earth to the bench where they were set.

Four pieces only — one of each
The collection

A stone that exists in one valley, and nowhere else.

Tanzanite is not a stone you buy in volume. It comes from a strip of ground a few kilometres wide in northern Tanzania, and when that ground is finished, there is no second source. We built this collection around that fact — a small number of pieces, each holding a stone we chose in person.

Every piece is traceable to the day it was found, the market where it was negotiated, and the people who made that possible. Owning one is a form of stewardship — of a rare material, and of the lives behind it.

The stone

Found in 1967. Formed 585 million years earlier.

A Maasai herder came across blue crystals on the Merelani Hills after a grass fire, in the shadow of Kilimanjaro. Geologists later traced their making to the tectonic movement that raised the mountain itself — a set of conditions so specific they have never been found anywhere else on the planet.

Tiffany & Co. introduced it to the world a year later and gave it the name Tanzanite. It is trichroic: turn it in the light and it moves between deep blue, violet and a warm burgundy — the same stone reading three ways. Heat draws the blue forward; everything else is the stone's own doing.

1 site
The only known deposit on earth, roughly 7km long.
3 colours
Blue, violet and burgundy from a single crystal.
Finite
Geologists expect the seam to be worked out within a generation.
Tanzanite in Manyara, Tanzania
Tanzanite stones on paper
Tanzanite stone
The journey — told by our founder

I went to Tanzania and chose every stone myself.

I did not want to buy tanzanite from a catalogue. I flew to Arusha, drove out to the Merelani Hills, and went down into the mines where these stones come from.

The heat underground is difficult to describe. The men working there do it every day, in conditions that are narrow, dark and genuinely dangerous. I stayed, and I talked with them — about their families, what they earn, what they hope their children will do instead, and why they keep going back down. Some have worked that seam for twenty years. They were generous with their time and their stories, and I have not stopped thinking about those conversations.

From the mines I went to the stone trading market. Hours of looking, holding stones to the light, walking away, coming back — every single stone in this collection was negotiated there, face to face. It was intense, exhausting, and one of the most unforgettable experiences of my life.

That is what you are buying into. Not an anonymous stone, but a chain of people I have met, paid fairly, and can name.

In Tanzania, choosing stones
You are not wearing a stone. You are wearing the day it was found, and the hands that found it.
From the mines, the market, the people
From the trip
From the trip
From the trip
From the trip
From the trip
Scroll sideways to move through the reel.
The pieces

Four designs, one seam of stone.

Each piece is made once, in recycled 18k gold, around a stone chosen for how it holds the light rather than for its weight.

ANGA tanzanite necklace
Piece one · Necklace

ANGA Tanzanite Necklace

Anga means “sky” in Swahili — chosen for the blue-violet character of tanzanite.

A single stone suspended from a fine collar of recycled 18k gold, held close to the throat.

Design note

Lightweight and very comfortable to wear, yet unmistakably luxurious. The three small spheres at its centre are engraved by hand with motifs drawn from the carved doors of Zanzibar — a detail you only find when you look closely.

Stone
Tanzanite, oval
Metal
Recycled 18k gold
Edition
One of one, certificated
The tanzanite earrings
Piece two · Earrings

AMANI Tanzanite Earrings

Amani means “peace” in Swahili — the quiet, everyday counterpart to the rest of the collection.

A pair of drop earrings, each built around an interlaced gold motif with a faceted tanzanite suspended beneath it.

Design note

The woven centrepiece is the same motif carried through from the ANGA necklace, drawn from the carved doors of Zanzibar — here given room to be the main event rather than a detail, with a pear-cut stone dropping from it.

Stone
Matched pair
Metal
Recycled 18k gold
Edition
One of one, certificated
MWANGA tanzanite ring
Piece three · Ring

MWANGA Tanzanite Ring

Mwanga means “light” in Swahili — for the shifting blue and violet reflections that characterise tanzanite.

An oval stone lifted on a curve of gold, the band turning back on itself in a single movement.

Design note

The open side of the band carries cowrie shell forms. For centuries cowries were currency across East and West Africa, traded from the Indian Ocean deep into the continent, and they remain a symbol of prosperity, fertility and protection — wealth that moves between hands rather than sitting still. The band is open, so the ring adjusts to your finger.

Stone
Tanzanite, oval
Metal
Recycled 18k gold
Sizing
Adjustable — open band
ANKHARA tanzanite ring
Piece four · Ring

ANKHARA Tanzanite Ring

Named for the ankh, the ancient Egyptian sign of life.

The stone sits inside the loop of the ankh, the crossbar resting along the finger — a quieter ring, made to be worn every day.

Design note

The ankh is the oldest written symbol of life we know — carried in the hands of Egyptian gods as the key that opens and holds it. Building the setting out of that shape lets the stone become the eye of the sign rather than an ornament placed on top of it. The band is open, so the ring adjusts to your finger.

Stone
Tanzanite
Metal
Recycled 18k gold
Sizing
Adjustable — open band
Certificated

Each piece arrives with its own original certificate — the stone recorded by where it was found, the market day it was bought, and what was paid for it.

Paid directly

Bought face to face at the trading market — no broker chain between the miners and us.

Given back

A share of every piece sold goes back to the mining community — safety equipment and schooling for their children.

Kept

Made in recycled 18k gold, finished in Oslo, delivered worldwide, and cared for by us for as long as you have it.

Private enquiry

Four pieces. When they are gone, that is the collection.

There is no cart for this collection. Tell us which piece you are drawn to, in whichever way suits you, and you will hear back from us personally — with the stone's story, sizing, and how to see it in person in Oslo.

Choose how to reach us
WhatsApp +47 972 94 822 contact@oriaku-studio.com
Complimentary carbon-neutral delivery worldwide. Each piece arrives with its own original certificate, and a share of every sale goes back to the Merelani mining community.
Tanzanite choker necklace