Precious metals casting house · Montreal

The casting house for makers who demand perfection.

From 3D file to finished jewel — design, 3D printing, lost-wax casting, finishing and stone setting. Six trades under one roof, in the heart of Montreal.

Gold · Silver · Platinum Waxes in by noon → cast next day Platinum cast every Tuesday

The house

Two paths, one atelier.

Founded in 2022 by Laura Casales and Benjamin Perez, Fonte LB Casting unites two complementary heritages: the rigour of Montreal's School of Jewellery and the exacting standards of Parisian haute joaillerie.

We marry proven artisanal methods with the latest technology — because a perfect cast begins long before the crucible, and doesn't end until the mirror polish.

Independent designers, artisan jewellers, established houses: your piece receives the same meticulous quality control here, from concept to finish.

Laura Casales at her jeweller's bench, working a piece by hand

Laura Casales

Director

Graduate of Montreal's School of Jewellery (2016) with an award of excellence. She pairs the jeweller's craft with the direction of the atelier — continuous training, artisan markets, and flawless organization.

Benjamin Perez polishing a ring at the wheel in the workshop

Benjamin Perez

Director

Trained at a prestigious Parisian jewellery school, with over 20 years in haute joaillerie. Workshop head turned entrepreneur in 2014, he has signed exceptional pieces throughout his career.

Our craft

From wax to metal.

Six stages, one quality control — ours, at every one of them.

Stage I

3D Design

Every piece is born in three dimensions. CAD modelling lets us design with precision, visualize and optimize your creation before a single gram of metal is committed.

Wireframe 3D model of a fine-jewellery ring
Stage II

3D Printing

Faithful prototypes and complex models, rapidly printed in castable resin. Lower production costs, more design freedom — including geometries impossible by hand.

Resin ring during 3D printing
Stage III

Mould Making

Silicone or rubber moulds to reproduce your pieces identically — serial-production precision without ever losing the detail of the original.

Open silicone jewellery mould with a silver ring
Stage IV

Lost-Wax Casting

The wax tree is invested in plaster, burned out, then placed under vacuum: molten metal fills every cavity by gravity and suction. Gold, silver, platinum — a dense, porosity-free cast.

Molten gold poured into a casting flask
Stage V

Finishing

Cast clean-up, pre-polish, mirror polish: every surface is reworked by hand to an even, brilliant finish, ready to receive its stones.

Gold ring polished to a mirror finish
Stage VI

Stone Setting

Under the microscope, each stone is set with the technique that secures it and shows it best — prong, bezel, pavé. The brilliance, without the risk.

Diamond placed into the prongs of a gold ring

The metals

Four noble metals.

Au

Yellow Gold

10k, 14k, 18k — cast dense and even, ready for clean-up or delivered raw, as you prefer.

Cast daily
Au

White Gold

Modern white alloys for a cool, luminous finish — the ideal base for rhodium plating.

Cast daily
Ag

Silver 925

Sterling and anti-tarnish — both guaranteed nickel-free.

Nickel-free guaranteed
Pt

Platinum

The most demanding metal, cast on a dedicated cycle. Drop off Monday by noon, delivered Wednesday.

Cast every Tuesday

On-demand services

Six trades, à la carte.

Every service is available separately — hand us one stage, or all of them.

01

Cast Clean-Up

Smoothing the raw as-cast surface: rough spots disappear and the piece is ready for polishing.

02

Pre-Polish

Tool marks removed for an even, brilliant finish — and stones that will shine all the brighter for it.

03

Assembly

Precise assembly of components to guarantee the strength and harmony of the final piece.

04

Laser

High-precision welding that makes the most delicate interventions and complex creations possible.

05

Stone Setting

Gem setting that secures every stone while showing its brilliance to full advantage.

06

Finishing

Final polish and careful detailing for showcase-ready aesthetic quality.

Turnaround

Published turnarounds, not promises.

Waxes received by noon, ready for casting
Available next day from 2 p.m.
Standard production
1–2 business days
Castable resins, 3D prints, moulds, large volumes
24 h or more
Platinum — dedicated cycle
Drop-off Monday noon → cast Tuesday → delivered Wednesday
Workshop hours
Mon–Thu 9:00 – 4:30 · Fri 9:00 – 2:00

Wax preparation: free of air bubbles, breaks and burrs; sprue proportional to the piece and well positioned, with a feed path of about 1 in (26 mm). A well-prepared wax is a perfect cast.

Bench tool

Wax → metal calculator.

Weigh your wax, pick your metal: get an instant estimate of the metal weight your cast will need. The tool every jeweller's bench should have at hand.

grams of metal (estimate)

Estimate based on standard industry multipliers. Final weight varies with sprue and geometry — your quote is the reference.

Trust

Your gold, protected.

You entrust us with your designs and your precious metal. Here is, plainly, how we take care of both.

Minimal metal loss

A controlled vacuum process and rigorous handling of your alloys — your metal goes into your piece, not into our losses.

Design confidentiality

Your 3D files and models remain yours. No reproduction, no sharing — your creations never leave the scope of your order.

Casting guarantee

A casting or polishing defect? Report it within 2 days of receipt — we take the piece back. Claims accepted up to 30 days after manufacture.

Transparent alloys

Sterling and anti-tarnish silver guaranteed nickel-free. For other alloys, we tell you exactly what they contain — just ask.

0 Years of craft
0 Trades under one roof
0 Max standard turnaround
0 Noble metals

Frequently asked

You may be wondering

Can you cast from my STL file?
Yes. Send us your 3D file (STL, 3DM or another CAD format): we check printability, print the model in castable resin and cast it in the metal of your choice. It's the shortest path from your screen to a finished jewel.
How much does casting a piece cost?
Price depends on the metal (at the day's market rate), the weight of the piece and the services you choose. Use our wax → metal calculator to estimate the weight, then request a quote — we respond quickly with a detailed proposal.
Which metals do you cast?
Yellow and white gold (10k, 14k, 18k), 925 sterling and anti-tarnish silver (both nickel-free), and platinum — cast every Tuesday on a dedicated cycle.
What are your actual turnaround times?
Waxes received by noon: available the next day from 2 p.m. Standard production: 1–2 business days. Resins, 3D prints, moulds and large volumes: add 24 h or more. These are our published turnarounds — not adjectives.
How should I prepare my waxes?
Free of air bubbles, breaks and burrs. Sprue proportional to the piece, well positioned, with a feed path of about 1 in (26 mm). In doubt, bring us the piece — we'll look at it together.
Do you work with makers outside Montreal?
Absolutely. 3D files travel well — and so do pieces. Contact us to arrange secure shipping of your waxes, models or metals.

Contact

Let's talk about your piece.

Two minutes of detail saves half a day of back-and-forth. Describe your project — metal, quantity, deadline — and we'll come back to you quickly with a detailed proposal.

Workshop

620 Cathcart Street, Suite 250

Montreal, Quebec H3B 1M1

Phone

514 360-6358

Hours

Monday – Thursday: 9:00 – 4:30
Friday: 9:00 – 2:00

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Have 3D files or photos? Attach them by email to fontelbcasting@gmail.com after sending the form.