Inside every La Promesse ring, a single green stone is set where only its wearer will see it: the House's signature, kept between two people.

The Engagement Ring

A Hidden Signature

A round brilliant diamond held by four slender double claws on a fine knife-edge band. Turn the ring, and a small green stone appears inside.

Discover the ring
The La Promesse solitaire with a small green stone set inside the band
The La Promesse ring worn on a Paris balcony

Worn Every Day

Designed to sit close to the hand and be worn for a lifetime.

A couple's hands wearing the La Promesse wedding bands

The Wedding Bands

A diamond band for her and a polished band for him, made to rest together.

A Private Consultation

Choosing the Stone

With a dedicated diamond specialist, choose the stone, the setting and the metal, in a private showroom, at home or by video.

A hand wearing a diamond solitaire engagement ring, resting on an ivory cashmere sweater

The Guide to Diamonds

Understanding a Diamond

Every diamond is chosen for the four characteristics that define its beauty, and comes with its grading report.

A round brilliant diamond on black
CutThe proportions and symmetry that release a diamond's brilliance and fire.
Diamonds lined up from colourless to faint yellow
ColourFrom perfectly colourless to the faintest warmth.
A diamond seen through a jeweller's loupe
ClarityThe purity of the stone, examined under magnification.
Eight diamond shapes in a row
ShapeRound, oval, cushion, emerald, pear, princess, marquise and heart.

The Presentation

Every La Promesse ring is presented in the Boîte Absinthe, with its grading certificate.

The La Promesse ring in its open absinthe-green box