CEPHI

Synthesized Bonds

A CEPHI diamond begins as a few grams of hair or fur, given as the first act of making something out of devotion. We isolate its elemental carbon and crystallise it under the same pressures that form diamonds in the deep mantle. The stone that returns holds the same atoms it began with — certified, faceted and set by hand. Given in life. Worn in life.

Lineage · 01 · The founding line

Union

Commissioned for engagements, marriages and the founding of a family line. The carbon signatures of two people — or of several generations — are fused within a single diamond. One stone; separate histories, permanently entwined at the atomic level.

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Lineage · 02

Companion

Commissioned to honour the animals at your side. Elemental carbon is isolated from a small quantity of your companion’s fur or feathers — collected during routine grooming, from a living, healthy coat — and grown into an enduring stone.

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The Atelier

Reference forms and private details. Every commission is drawn bespoke — these plates open the conversation, and the quietest details are known only to the wearer.

The Classic Six-Prong setting
I

The Classic Six-Prong

A single round brilliant in six slim claws — the enduring silhouette.

The Four-Prong Solitaire setting
II

The Four-Prong Solitaire

The archetype. Nothing competes with the stone.

The Pavé Four-Prong setting
III

The Pavé Four-Prong

Pavé shoulders on a knife-edge band.

The Split-Shank Crossover setting
IV

The Split-Shank Crossover

Two strands crossing beneath an open gallery.

The Oval Old Mine Cut setting
V

The Oval Old Mine Cut

Antique candlelight facets, set lengthwise.

The Cushion Halo — three-quarter and profile views, rose goldVI
VI

The Cushion Halo

A cushion cut in a slim pavé halo. Shown in rose gold.

The Bezel Emerald — three-quarter and profile viewsVII
VII

The Bezel Emerald

An emerald cut in a full bezel — architectural, quiet.

VIII

The Hidden Halo

A concealed circle of stones beneath the crown — diamonds, or a colour only its wearer knows about.

The Undergallery — a pavé row along the under-bridge of the band, visible in profile, white goldIX
IX

The Undergallery

A pavé row beneath the stone, revealed only in profile.

The Concealed Stone — a bezel-set ruby beneath the centre diamondX
X

The Concealed Stone

A private stone beneath the diamond, facing the finger.

Embedded stones — three diamonds flush-set into the inner bandXI
XI

The Embedded Stones

Stones set into the inner band, worn against the skin.

XII

The Engraved Sequence

Your stone's registry sequence, hand-engraved inside the band — the certificate, carried.

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The Protocol

A commission moves through five controlled states — from a routine appointment with your own stylist or groomer, to a finished stone under independent grading.

01

Commission

A private consultation defines the stone. Your sealed Repository Capsule follows by insured courier, registered under its own alphanumeric sequence.

02

Harvest

At a routine appointment, your trusted stylist, barber or master groomer sets aside 5.0 g of clean, dry clippings — a lightly compressed tennis ball — and seals the capsule. No root or follicle required.

03

Registration

The sealed capsule returns to the Maison. Your sample is assigned its alphanumeric sequence and its Certificate of Biological Origin is opened.

04

Crystallisation

Purified carbon meets the seed crystal under mantle-grade heat and pressure. The seeding moment is filmed for your private archive.

05

Artistry

The rough is hand-faceted, polished and set by master jewellers, then delivered with certificate and video archive.

Provenance, guaranteed

Chain of custody

From the moment your capsule is sealed, an unbroken, independently documented custody record follows your material into the laboratory and out again as a stone.

Video archive

Every matrix creation is filmed. You receive a private, high-definition cinematic record of the precise moment your carbon signature initiates growth within the seed crystal.

Certificate of Biological Origin

The film corresponds to an alphanumeric sequence engraved on a physical certificate — the legal document binding your stone to your sample.

Beyond the lines

Beyond the biological lines, the atelier accepts custom commissions for laboratory-grown diamonds, coloured gemstones and fine cultured pearls — upon inquiry.

Consultation

Every piece is an intimate custom commission.

Pricing is disclosed by enquiry only, defined by carat ambition, colour and setting. Begin in writing or by private video with our concierge — as you prefer.

We grow diamonds from the carbon of living hair and fur — atoms gathered from a bond while it thrives, cut by hand in the old way. A CEPHI stone is not commissioned to remember anything. It is worn alongside the life it came from.