Openwork silver filigree bow brooch showing hand-soldered junctions

What Is Silver Filigree? A Definition, and How to Tell It From Machine Work

Filigree is jewellery made from wire rather than from a solid piece of metal. Silver is drawn into a thread fine enough to bend by hand, shaped into petals, spirals and feathers, then soldered together into a lattice that holds its own shape while leaving most of its area open. The word comes from the Latin filum (thread) and granum (grain), which describes the two building blocks: drawn wire, and small beads of metal.

The definition matters commercially, because a great deal of what is sold as filigree is not made that way. It is cast from a mould and then finished to imitate wire. From a metre away the two look the same. In the hand, and under a loupe, they are different objects with different lifespans.

What filigree is not

Three things get called filigree that are not:

Casting that imitates wire. Metal is poured into a mould shaped like a lattice. The detail can be convincing, and it can be very fine. But a casting has no wire in it, so it cannot be repaired by soldering, and its threads are usually thicker than real wire could be at the same visual weight.

Stamped or die-cut sheet. A flat sheet is punched into a pierced pattern. The result is genuinely open, and cheaper than either of the above, but the pattern is planar — every element is the same thickness, and there are no junctions, only edges.

Wire wrapped around a frame. Common in inexpensive jewellery. Wire is coiled or wrapped against a solid backing. It reads as openwork but the structure depends on the backing, which is usually hidden.

How real filigree is made

Four stages, in this order:

Drawing. Silver is pulled through progressively smaller dies until the wire is fine enough to bend into a curve a few millimetres wide. The wire is annealed between passes, because drawing hardens it and hardened wire cracks when bent.

Shaping. The wire is bent cold into the elements of the pattern — petals, feathers, the small spirals that fill negative space. Nothing is cut from sheet at this stage. Every element is a length of the same wire.

Assembly. Each element is placed on a refractory surface and soldered to its neighbour with a flame small enough not to melt the work already done. This is the slow part. A single brooch can require dozens of separate joints, and each joint risks everything soldered before it.

Finishing. The piece is annealed to relieve the stress the bending introduced, pickled to remove oxidation, then polished. Filing and tumbling come last, because the openwork cannot take pressure.

Because every stage is done by hand, no two pieces are identical. That is a description of the process rather than a marketing claim: a maker who works this way cannot produce two identical pieces even when trying.

Three tests you can do yourself

Look at the junctions. Real filigree has visible solder points where elements meet. Under a loupe they are small, slightly brighter than the surrounding metal, and placed by hand, so they are not perfectly regular. A casting has no solder at all: its junctions are continuous with the surrounding metal, like a river delta rather than a join.

Look at the back. Handmade filigree is finished on both sides, because the maker knows the back is visible when the piece is picked up. Casting is often left rough or hollowed on the reverse to save weight. A piece that is crisp on the front and soft on the back is telling you something.

Check the thickness. Drawn wire is uniform in diameter but varies in direction — it bends in three dimensions. A casting can hold a constant thickness across every element, which is a hallmark of a mould and impossible with wire bent by hand at this scale.

Where 999 and 925 sit in this

Filigree is usually made in fine silver (999) rather than sterling (925), because fine silver can be drawn thinner and bent tighter without cracking. The trade-off is softness: fine silver deforms more easily, so the parts that take repeated stress — pins, catches, chain joints, ear wires — are usually 925.

This is why a well-made piece often mixes both. A single alloy would either crack during making, if it were 925 throughout, or fail in use, if it were 999 at the stress points. The mix is a structural decision rather than a cost one.

Why it costs what it does

Filigree is priced by hours rather than by weight. A filigree brooch of the same silver weight as a cast one might carry ten times the labour, and a fraction of the metal, because most of its area is air. Judging it by gram price will always make it look expensive: you are paying for the joints, not the silver.

The useful question is not how much silver is in it, but whether it can be repaired. A piece built from wire and solder can be re-soldered by the person who made it. A casting cannot be repaired at all — it can only be replaced.

Pieces where the junctions are the point

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