Lost-wax casting

The lost wax technique is a dance between the ephemeral and the eternal. It is an almost magical process that allows for the transformation of a soft and malleable material like wax into a precious and indestructible metal.
In jewelry making, this technique is the queen of creative freedom: without it, we would not have the organic details, silky textures, and sculptural forms that characterize the world's most beautiful jewels.
The earliest findings date back to 4000 BC (in the Levant and South Asia).
If today a goldsmith wants to create a ring that looks like a tree branch or a silk drape, they use exactly the same principle as thousands of years ago.
How a jewel is born: The Step-by-Step Process
In jewelry making, the process is a combination of millimeter-scale sculpture and material chemistry.
1. Modeling (The Prototype)
The goldsmith sculpts the object in a special wax (harder than candle wax). Every detail carved here will be present in the final metal.
Curiosity: Today, hand-modeled waxes are often used, but also 3D-printed prototypes with castable resins.
2. The Casting Tree
If multiple pieces are to be created, the wax models are attached to a central trunk (also made of wax), forming what is technically called a "sprue tree." This will create the channels through which gold or silver will flow.
3. The Flask and Plaster
The tree is placed in a metal flask…
Despite the industrial automation we have embraced today, lost wax casting remains unsurpassed for two reasons: the creation of extreme details and the production of unique pieces.