Sustainable Luxury

Astrea London

 Jewellery Maison

TheUltimateExpressionofLab-grownDiamonds.

Diamond couture and bespoke pieces,  uniquely designed for you.

  • CertifiedIGI, GCAL & GIA
  • AssuredAssay tested
  • ShippingFully insured worldwide
Sarah Jessica Parker wearing Astrea London jewellery

Creative Partner

Sarah Jessica Parker

As a shareholder and Global Creative Director of Astrea London, multi-award-winning actress and style icon Sarah Jessica Parker is pioneering a new era for luxury lab-grown diamonds. Blending timeless elegance and the heritage of diamonds with cutting-edge technology, innovation and sustainability, she is helping redefine modern luxury. Bringing her signature style and global influence to a movement transforming fine jewellery, SJP honours the legacy of diamonds while shaping their future.

The Astrea London atelier bench in daylight

The Maison

A House built on light

Astrea London was founded on a single conviction: that the finest jewellery should be made without compromise, in materials of absolute purity. Every piece is drawn in London, set by hand, and finished to the standards of high jewellery. Our diamonds are grown rather than mined, which allows us to select for clarity and character without limit.

Collections

Three chapters of the Maison

A diamond is only the beginning.True luxury is the detail no one else sees.

Featured Pieces

Selected by the atelier

A jeweller setting a diamond ring by hand

Craftsmanship

Set by hand,considered twice

Each setting is worked under the loupe by a single hand, from wax model to final polish. Stones are matched by eye as well as by certificate, because two diamonds of identical grade rarely wear the same. Nothing leaves the atelier until it has been examined a second time, by someone who did not make it.

Astrea London bespoke atelier with design book and loose diamonds

Bespoke

Bespoke Atelier

A single commission, drawn by hand and set to your measure.

Private client salon at Astrea London

Client Care

Private Concierge

Private appointments, in our London salon or wherever you are.

Private Appointment

Meet your diamond in person

An hour with a gemmologist, entirely yours.