Bespoke fine jewelry · The Hague · Worldwide commissions
XLVIII & CO.
Ethically sourced

Our diamonds

Ethically sourced and fully traceable — cut and polished in our own Hague facility, from mine to masterpiece.
Diamond ring photographed in natural light
A commitment to ethically sourced stones
Every diamond we set is ethically sourced and fully traceable from mine to masterpiece. Our dedication to responsible sourcing means each stone meets the highest standards of ethical and sustainable practice — and you know exactly where it came from.
Loose diamonds being inspected in the atelier
Diamond origin

Three trusted mines

We source raw diamonds exclusively from three of the world's most reputable mines, known for ethical practice, environmental stewardship and community development.

Rio Tinto

A global leader in responsible mining, with a long record of transparency and environmental care.

Arctic Canadian

Canadian diamonds mined to some of the strictest ethical and environmental standards in the world.

Okavango

Botswana diamonds that fund community development and reinvest in the country of origin.

Diamond being cut and polished in-house
Traceability
Cut and polished in our own facility
To protect integrity and traceability, we don't trade raw diamonds. Our entire inventory is cut and polished in-house, so each stone's journey — from the earth to your jewelry — is meticulously documented and transparent. You wear your piece knowing it represents both exquisite craft and sustainable luxury.
3
Ethical mines
0
Raw diamond trading
100%
Documented
GIA
Graded

Choose a stone with a story you can trust

Tell us what you're creating and we'll guide you to the right diamond for it.