How much is a vintage costume brooch worth?
Costume jewelry is base metal and glass or plastic, sometimes signed. The signature, the pin back, and a missing stone are the price, not the sparkle.
Costume brooches were made to look like jewels without being jewels. The metal is brass or pot metal, the stones are glass or plastic, and the value, when there is one beyond “I like it,” sits in the maker, the design, and the condition. Signed pieces from houses people collect, and unsigned pieces that are merely pretty, are different searches. A thrift pin with a missing stone and a bent pin stem is a broken pin. The sparkle in warm store light is not a maker.
This is a place where fakes of the signature exist, and where honest unsigned jewelry gets a famous name written on a sticker by a hopeful seller. Read the back. If there is no name, there is no name. If there is a name, photograph it and search that name plus brooch, sold listings, in the same condition. Do not start from a price you saw for a different decade’s piece in a book. Books go out of date, and this page will not replace one with a new invented number.
What to look for
- The signature
- A name or mark stamped or applied on the back: the maker, sometimes a copyright symbol and a year. Photograph it straight on. A sticker is not a signature. A signature that is a glued plate may be original to that maker’s method or may be later. Show it clearly and do not scrape it to “see.”
- The pin stem
- A locking C-clasp, a simple open clasp, or a safety-pin style. The mechanism dates construction loosely and it has to work. A stem that does not catch means the buyer cannot wear it. That is the condition.
- Stones
- Count them. Look for dark glue, missing spots, and foil backs that have gone black. Blackened foil behind a glass stone is age and it is also a dull stone. Describe it.
- Metal damage
- Pot metal disease looks like bubbling, cracking corrosion and it spreads. That piece is dying. Do not price it as a clean signed brooch. Brass that is only tarnished is a different, stable condition.
What moves the price
- Signed or not
- Collectors search the maker. Unsigned means you are selling a design, and the comps are other unsigned brooches of similar size and quality, which are often modest. The absence of a name is information. Use it.
- Completeness
- All stones, a working clasp, no green corrosion. A missing center stone is the listing. Someone may still want it to harvest the rest. They will not pay the complete price. Do not let them discover the hole at home.
- Scale
- Measure the width. A two-inch brooch and a five-inch statement piece do not comp together. Put a ruler in one photo.
- Fashion, not gemology
- Do not call glass rhinestones diamonds, and do not call a red stone a ruby. “Glass” and “color” are honest and they do not make the brooch less itself. Costume was proud of being costume.
Where to sell
- eBay
- Best when signed. Title the maker, the word brooch, and any damage. Unsigned pretty pins do sell, slowly, at wearable prices. Look at sold, not at the fantasy asking titles.
- Local and lots
- A handful of unsigned pins can be a lot. One bent unsigned pin is often a pass. Your time has a cost, which the reselling notes in the journal keep repeating because it stays true.
- Wear it
- Costume’s original purpose. A sound brooch you like, bought for a small price, does not need a resale thesis.
What a photo can settle
Front in diffuse light, back with the signature in focus, the clasp open and closed, and any missing stone. Worth can read a clear maker’s name. It cannot identify unsigned costume from sparkle alone, and it cannot see pot-metal bubbling if you only shot the front.
Questions
- Is costume jewelry worthless?
- No. It is not gemstone jewelry. Signed, intact pieces have a collector market you can see in sold listings. Unsigned and broken pieces are often worth about what you would pay to wear them, which may be less than the thrift sticker.
- How do I clean a brooch?
- A dry soft brush. Avoid soaking foil-backed stones and avoid dipping pot metal. Water under a foil stone turns it black. If it is already corroding, cleaning will not reverse the rot.
- What if the signature says a famous name I cannot quite read?
- Do not guess the famous name in the title. Say the mark is unclear and show the photo. A wrong signature is a false listing. A cautious one still sells to people who can read the picture.