one of one

Crafted

Without Equal.

Diamond and opal jewelry designed for those who refuse the ordinary. Each piece exists once.

The Collection

Singular Pieces

Shattered Eternity Ring

Signature

Shattered Eternity Ring

Diamond & 18k Gold

Aurora Blue Opal

One of One

Aurora Blue Opal

Ethiopian Welo Opal

Solstice Cuff

Bespoke

Solstice Cuff

Pavé Diamond & Yellow Gold

Loose Stones

The Foundation of Every Piece

Loose natural diamonds sourced from House of Yusei's own mines in India

Diamonds

Conflict-free, hand-selected for brilliance, fire, and scintillation. Each stone is chosen as if it will be the only one.

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Exotic opals sourced directly from Australia and Ethiopia by House of Yusei

Opals

Ethiopian, Australian, and Lightning Ridge. No two opals share the same play of color — a living stone, endlessly shifting.

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Every piece begins with a single stone.

We design around what the stone wants to become.

Bespoke

Commission Something Singular

Bring us a vision — or nothing at all. We work with you from stone selection through final setting to create a piece that has never existed and never will again.