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.

Book a design consultView the gallery →
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 →
The Signet Commission
The Signet Commission
18k gold · bespoke engraving
Tennis, remade
Tennis, remade
Traceable diamonds · custom length
Heirloom reset
Heirloom reset
Your stones · new life

Have something in mind?

Tell us the moment you're marking. We'll sketch, quote and guide you through every step — no obligation.

Start your commission

How a commission comes to life

01
Consult
We talk through the story, budget and stones.
02
Design
Hand 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.
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.
Discover the process

Come see us, or reach out

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

WhatsApp usinfo@xlviiiandco.com
Atelier
Jan Pietersz. Coenstraat 7, The Hague
The Hague, 2595 WP, Netherlands

Hours
Mon–Fri 8:30–20:00 · Sat–Sun 9:30–13:30
+31 6 3832 6556