Bespoke fine jewelry · The Hague · Worldwide commissions
XLVIII & CO.
Made by hand, made for you

Jewelry made for a life,
not a season.

From a first sketch to the final polish, we design one-of-a-kind pieces around your story — ethically sourced diamonds, platinum and gold worked by hand in our Hague atelier.

The atelier

We don't sell from a case. We sit down, listen, and draw — then we make the thing that only you could have asked for.

Every commission is graded to strict GIA standards and traceable from mine to masterpiece. You'll know the origin of your stone and the hand that set it.
Jeweler working at the bench in the XLVIII & Co atelier

Signature pieces

Explore the full gallery →

Have something in mind?

Tell us the moment you're marking. The first conversation is free and without obligation — a €500 deposit starts the design.

How a commission comes to life

01
Consult
We talk through the story, budget and stones.
02
Design
A €500 deposit starts the design — then sketches and 3D renders until it's right.
03
Craft
Cut, set and finished by hand in our atelier.
04
Deliver
Certified, insured and yours to keep for life.

€500 design deposit — paid before we start designing, credited in full toward your final price.

Loose diamond photographed in the XLVIII & Co atelier
Our diamonds
Traceable from mine to masterpiece
Sourced only from Rio Tinto, Arctic Canadian and Okavango, then cut and polished in-house. Every stone GIA-graded and documented.

Come see us, or reach out

Visits by appointment at our Hague atelier, or start the conversation from anywhere.

Hours
Mon–Fri 8:30–20:00 · Sat–Sun 9:30–13:30
+31 6 38326557