A brooch is a decorative kind of pin, usually held by a hinged stem and catch across its back. A pin can be much smaller and may fasten at one point. For a piece with real width or weight, the useful difference is simple: choose the back that spreads the hold across the cloth.
People use brooch and pin for the same object because both words are often right. The search term brooch pin says as much. The words separate only when the fastening needs attention. A small lapel pin can sit on one post. A larger piece needs more purchase.
Is every brooch a pin?
Yes, every brooch is a pin, but not every pin is a brooch. In American usage, pin is the broad word for an object that passes through cloth. It includes a lapel pin with a short post and clutch, an enamel pin, a stick pin, and a brooch. A brooch is the jewelry branch of that family. It is decorative, usually broader than a lapel pin, and commonly has a hinged stem that travels across the back before it meets a catch. Brooch pin is simply both words together. It is useful search language, not a separate fastening type.
Why does the back matter?
A pin back holds a brooch at two points, where the stem enters the cloth and where it reaches the catch. That line of support keeps the front closer to the fabric and spreads the load. A short post with a clutch holds at one point. It works for a small lapel or enamel pin, but a larger piece can turn or tip forward. A stick pin is a long needle with a cap, made to pass through the cloth and return through it. The back, rather than the front shape, is what decides how a piece stays put.
Which fastening suits each kind of pin?
A pin back is the practical choice for a brooch with broad wirework or a pearl setting. The four pieces below all use a pin back, according to their spec sheets. Their measurements range from 4.7 cm across to 7 × 7 cm, and their weights run from 6 g to 14 g. Those are measurements from our own pieces, not a trade standard, but they show why a post is too small a support for this group.
| Type of pin | Fastening | Usual size | How it sits on fabric |
|---|---|---|---|
| Lapel or enamel pin | Short post and clutch | Small | Held at one point |
| Brooch | Hinged stem and catch | Broad or weighted | Held along the back |
| Stick pin | Long needle and cap | Narrow | Passes through cloth |
What do our brooches show?
The Camellia Brooch measures 7 × 7 cm and weighs 14 g on the spec sheet. It is crocheted by hand from silver-plated copper wire with palladium-plated fittings, and holds one white freshwater cultured pearl. The Ginkgo Brooch measures 4.8 × 6.3 cm and weighs 9 g. It is crocheted by hand from gold-tone copper wire with a palladium-plated copper branch and faceted crystals. Both have a pin back. The span across the rear gives the flower and leaf a steadier hold than one short post could provide.
The Gilded Fan Brooch is 5.2 × 6.2 cm and 9 g, according to its spec sheet. It is crocheted by hand from gold-tone copper wire, with an 18K gold-plated copper stem, rhinestones, and bronze freshwater cultured pearls. The Pearl Nest Brooch is 4.7 cm across, 1.6 cm deep, and 6 g. It is crocheted by hand from rose gold-tone or silver-tone copper wire, with an 18K gold-plated copper back and a freshwater cultured pearl. Each has a pin back. More examples sit in the brooch collection.
How do you open and close a pin back?
Open the catch first, then lift the stem from its slot and swing it clear. Push the stem through the cloth, keeping the front flat while the point goes through. Bring the stem back to the catch and press it into place until it is seated. To remove it, open the catch before pulling the stem free. For placement and fabric guidance, read how to wear a brooch. The open loops in the wire pieces are explained in what wire crochet jewelry is.
FAQ
Can a brooch be called a pin?
Yes. Pin is the wider word, so it includes brooches as well as lapel pins and stick pins. Calling a decorative pin a brooch is useful when its larger front and hinged pin back are the features that matter.
What is a brooch pin back?
A brooch pin back is a hinged stem that runs across the reverse of the piece and locks into a catch. The stem enters and leaves the fabric at separate points, which helps a broader front sit flatter.
Why does a larger pin tip forward?
A short post supports an object from one point. If the front is broad or carries more weight, it can rotate around that point. A pin back gives the object a longer line of support.