Lost-wax casting: the ancient technique behind every Sampaoli jewel.
Every Sampaoli Creazioni jewel is born twice.
The first time in wax, in the hands of Andrea Sampaoli, in his workshop in the Euganean Hills. The second time in bronze, when molten metal replaces wax and replicates every detail with absolute fidelity.
This process is called lost-wax casting. It's one of the oldest artistic techniques in existence—and even today, after three thousand years, there's no better way to convey the complexity of a hand-sculpted form into metal.
What is Lost Wax Casting?
Lost-wax casting is a metal casting process that uses a wax model as a starting point.
The principle is simple: a wax model is created with all the desired details, it is covered with a refractory material to create a mold, then the mold is heated until the wax melts and flows out—hence the name "lost wax"—and finally the molten metal is poured inside, which takes the exact shape of the original model.
The result is a metal piece that faithfully replicates every millimeter of the wax model—including microscopic imperfections, finger marks, and the texture of the hand-worked surface.
A Three Thousand Year Old Technique
Lost-wax casting is not a modern invention. The earliest evidence dates back over 3,000 years—in Mesopotamia, Egypt, and India. Etruscan bronzes, Greek statues, and Roman masterpieces were created using this technique.
In the Italian Renaissance, lost-wax casting reached its perfection: Benvenuto Cellini’s Perseus in Florence, Donatello’s Gattamelata in Padua, Verrocchio’s Colleoni in Venice — all made with variations of this same process.
The fact that even today, in 2026, the best technique for creating a bronze jewel with precise anatomical detail is the same one used by Donatello speaks volumes: some things don't improve with modernity. Sometimes the ancient technique is simply the best.
The Step-by-Step Process
1. Wax modeling Andrea Sampaoli begins by modeling the subject in wax. This is the longest and most important step—the wax must capture every detail you want to see in the final piece. A deer is studied anatomically before being modeled. Every antler ramification, every muscle, every proportion is considered.
2. Creating the mold The wax model is covered with refractory material—a mixture that resists high temperatures. The mold is built in layers, allowing each layer to dry before adding the next.
3. Wax Removal: The mold is placed in a high-temperature oven. The wax melts and flows out, leaving a perfectly shaped cavity inside the mold.
4. Casting the bronze Molten bronze—at a temperature of about 950°C—is poured into the cavity left by the wax. The metal fills every space, every detail, every corner.
5. Cooling and Removal Once cooled, the refractory mold is broken to release the bronze piece. Each mold is destroyed—so each casting produces a unique piece.
6. Hand finishing The rough piece is finished by hand: filing, sanding, and patination. It is at this stage that it takes on its final form—the dark patina in the cavities, the shiny surface on the reliefs, the contrast that brings out every detail.
Because Every Piece Is Unique
The direct consequence of this process is that no two pieces are identical.
The mold is destroyed after each casting. The finishing is done by hand. The patina varies slightly from piece to piece. Even starting from the same wax model, each casting produces a slightly different bronze.
This is why a Sampaoli jewel cannot be reproduced industrially. Not because Sampaoli decided to—but because the very nature of the process prevents it.
Lost-wax casting vs. industrial production
Industrial jewelry production uses permanent steel or silicone molds that can produce thousands of identical pieces. The result is consistent, predictable, and cost-effective.
Lost-wax casting produces pieces that no permanent mold could replicate with the same fidelity. The subtle details, complex surfaces, organic forms—all of this is possible only from a hand-crafted wax model.
The difference can be seen and felt: in the weight of the solid bronze, in the precision of the anatomical detail, in the patina that ages beautifully.
The Teolo Laboratory
Andrea Sampaoli works in his laboratory in Teolo, in the heart of the Euganean Hills in Veneto. A volcanic landscape of silent woods—far from the rhythms of industrial production.
This is where each wax model takes shape, where the bronze is melted and cooled, where each piece receives its final finish.
Every jewel that leaves this laboratory carries with it a piece of that place and that process.
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