Lost-Wax Cast Jewelry Explained
Lost-wax casting is an ancient metalworking technique that transforms a wax model into a unique metal object. At Moon Raven Designs, we use this method to craft our sterling silver and oxidized bronze talismans. Each piece begins as a hand-carved wax original, which is then invested in a heat-resistant plaster, burned out to leave a cavity, and filled with molten metal. The result is jewelry with sharp detail, a solid weight, and a subtle texture that reflects the hand of the maker.
About the material
Lost-wax casting—also called cire perdue—is a process that allows for intricate shapes and fine surface detail that would be difficult to achieve by fabrication alone. The wax model captures every tool mark and carving line, and the final metal piece retains that organic quality. Because the wax is destroyed in the process, each casting is a one-of-a-kind original unless a rubber mold is made from the master pattern. At Moon Raven, we often work directly from carved wax, so no two pieces are identical.
The metal we use is sterling silver (92.5% silver, 7.5% copper) or silicon bronze (approx. 97% copper, 3% silicon). Both alloys cast well and develop a warm patina over time. The casting process gives the metal a dense, substantial feel—a ring or pendant will have a satisfying heft. The surface may show slight porosity or a matte finish from the investment, which we often leave as part of the aesthetic or polish to a soft luster.
Sterling silver is generally hypoallergenic for most people, though the copper content can cause reactions in those with extreme metal sensitivities. Bronze is nickel-free and safe for most. Neither alloy is likely to tarnish dramatically if worn regularly, but silver will darken with exposure to sulfur in the air. We intentionally oxidize many pieces to create a deep black patina in recessed areas, which is not a defect but a deliberate finish meant to evolve with wear.
Care
Clean your lost-wax cast jewelry with a soft cloth and mild soap and water if needed. Avoid abrasive polishes, which can remove the intentional patina. Chlorine, salt water, and household chemicals can damage the metal or accelerate tarnish. Remove rings before swimming or using cleaning products. Store pieces separately to prevent scratching. If the patina fades over time, you can restore it with a liver of sulfur solution or bring it to a jeweler. For silver, a gentle silver cloth will brighten high points without stripping the recessed oxidation.
Lost-Wax Cast Jewelry — Explained — current pieces

Grizzly Bear Claw Pendant
$148.50

Black Bear Claw Necklace
$140.00

Sterling Silver Necklace
$95.00

Diving Sea Otter Earrings
$180.00

Turtle Shell Earrings
$170.00

Raven Claw Ring
$120.00

Triceratops Skull Pendant Sterling Silver Necklace
$100.00

Kestrel Falcon Talon Pendant
$95.00

Sterling Silver Pendant Grim Reaper Necklace
$130.00

Sterling Silver Tiki Pendant
$90.00

Sterling Silver Pendant
$85.00

Grizzly Bear Necklace
$140.00
Who chooses this
Lost-wax cast jewelry appeals to those who value the handmade and the singular. It suits collectors who appreciate that a piece was carved from wax, not stamped from a die. The buyer is often someone who wants jewelry with weight and presence—a ring that feels solid on the finger, a pendant that hangs with authority. They are drawn to organic forms, asymmetrical details, and the subtle evidence of the artist’s hand. This is for the person who chooses a talisman with history, not a mass-produced accessory.
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Frequently asked
What is the difference between casting and lost-wax casting?
Casting is a broad term for shaping metal by pouring it into a mold. Lost-wax casting is a specific method where a wax model is melted out before pouring, allowing for complex shapes that cannot be made with a reusable mold.
How can you tell if jewelry is lost-wax cast?
Look for fine detail, slight surface texture, and a solid feel. There may be small bumps or porosity from the casting process. The piece often has a one-of-a-kind quality with subtle asymmetries.
What is the disadvantage of lost-wax casting?
The wax model is destroyed, so each piece is a unique casting unless a rubber mold is made. The process is also time-consuming and requires specialized equipment, making it less suited for mass production.
Is lost-wax casting still used today?
Yes, it is widely used by jewelers, sculptors, and dental labs. Modern methods like 3D-printed wax patterns have expanded its applications, but the core technique remains unchanged.
Why is it called lost wax?
The wax model is 'lost' during the process—it is melted and burned out of the investment mold, leaving a cavity that is then filled with metal. The wax is consumed and not reused.
What are the two types of lost-wax casting?
The two main types are direct casting, where the wax model is carved and cast as a one-off, and indirect casting, where a rubber mold is made from a master pattern to produce multiple wax copies.
Can you do lost-wax casting at home?
It is possible with a small kiln, investment, and casting equipment, but the process involves high heat and hazardous materials. Many hobbyists start with a vacuum casting machine or use a local casting service.
What is the difference between investment casting and lost-wax casting?
Investment casting is a broader industrial term that includes lost-wax casting. In jewelry, the terms are often used interchangeably, but investment casting can also refer to processes using foam or other patterns.