Collecting Vintage & Costume Jewelry: A Complete Guide
How to sort, identify, value and care for vintage jewelry, including the jewelry box you just inherited. Fine gold and gems to signed costume pieces.
Jewelry gets inherited more than almost anything else, and it gets misjudged just as often. One box can hold real gold, a signed designer brooch and a pile of pretty costume pieces worth a few dollars each. At a glance they look alike.
So the first job with vintage jewelry is sorting, not pricing. You find out what each piece is made of. You look for the marks that say who made it. Then you check condition, because a missing stone or a bad repair takes a big bite out of value.
This guide walks through those checks in the order you’d do them at a kitchen table, with the inherited box in mind. One rule before you start: don’t clean anything, and don’t sell anything for scrap until you’ve looked for a signature. A signed piece can be worth more as itself than as metal.
Fine vs. costume: the first distinction
The first split is fine jewelry versus costume (fashion) jewelry. Fine jewelry is precious metal (gold, silver, platinum) with real gemstones. Costume jewelry uses base metals, plating, glass, rhinestones and early plastics like Bakelite. Fine pieces have material value. Costume pieces are valued for design, maker and demand. Both can be worth real money, for different reasons. So figure out which one you’re holding first.
Signatures, hallmarks & maker’s marks
Turn the piece over and look for marks. On fine jewelry, the hallmark gives the metal. 14K or 585 means 14-karat gold. 18K or 750 means 18-karat. 9K or 375 means 9-karat. 925 or “sterling” means sterling silver. On costume jewelry, look for a designer signature. Names like Miriam Haskell, Eisenberg and Trifari carry real premiums over unsigned pieces. Coro is everywhere and mostly modest. A mark is usually the biggest single clue to what something is.
What drives value
Maker, materials, era, workmanship, rarity and condition. Plus demand, which shifts. A signed Haskell necklace, a well-made Art Deco ring and a real sapphire in a good setting all sell well, for different reasons. Condition and originality run through all of it. A broken or heavily repaired piece is worth far less than the same piece intact.
Want a transparent estimate for a single piece? Try our free value estimator →
Real or costume? How to tell
A few checks get you most of the way. Hallmarks come first. Weight helps: gold and silver feel heavier than plated base metal. A magnet helps too. Gold and silver aren’t magnetic, so a piece that sticks isn’t solid gold or silver. (A piece that doesn’t stick could still be brass.) Settings are a clue, not proof. Real stones are often prong- or bezel-set, while glued-in stones point to costume or to an old repair.
None of this settles it alone. Plating and good fakes exist. For anything that might be valuable, get it tested by a jeweler before you decide.
Condition, care & authentication
Missing stones, worn plating, broken clasps and amateur repairs all cut value. Watch for authentication issues too: faked designer signatures, reproductions and “marriages,” where parts of different pieces have been put together.
Store pieces apart so they can’t scratch each other. Keep them dry and away from perfume and cleaning products. And go easy on cleaning. Harsh polish can strip plating and damage soft stones like pearls and opals.
Making sense of an inherited jewelry box
Inherited a jewelry box and not sure what’s in it? Avoid two opposite mistakes: assuming it’s all precious, and assuming the costume pieces are junk. Photograph everything before you clean or separate anything. Then sort into three piles: marked precious metal, signed costume, and unmarked. Note every hallmark and signature.
Get the possibly valuable pieces tested or appraised. And check the costume pile properly, because a signed piece can be worth more than you’d guess from what it’s made of.
Cataloging & managing your collection
Jewelry is lots of small, easily confused pieces, and the details that matter (hallmark, signature, metal, stones, condition) are the ones you forget first. In Relicara each piece is an item with photos, a condition and notes. Custom fields hold the hallmark, the signature, and a select for fine or costume. If you’ve had something appraised, record the figure and the date in a custom field and keep the paper appraisal somewhere safe. Relicara doesn’t store documents.
The free plan holds one collection of 10 items, enough for the pieces that matter most. Pro adds more room and AI valuations, which estimate from your photos and description. They can’t test metal or stones, so they’re no substitute for a jeweler. Premium adds CSV/PDF export if you need a list for an insurer or an executor.
Frequently asked questions
Is my old or inherited jewelry worth anything?
It depends on what it is. Real gold, silver and gemstones have material value even in a plain design. Signed costume pieces can be collectible. Plenty of old jewelry is modest, and age alone doesn’t make a piece valuable. Identify each piece by material, maker, era and condition before you decide. This is general information; for a value you can rely on, use a qualified independent appraiser.
How do I tell if jewelry is real gold or costume?
Look for hallmarks first: 14K/585, 18K/750, 925 or “sterling” mean precious metal. No mark often (not always) means costume. Real gold and silver also feel heavier than plated metal. These are clues, not proof, so have anything promising tested by a jeweler or gemologist.
Does costume jewelry have any value?
Yes, sometimes a lot. Signed designer pieces (Miriam Haskell, Eisenberg, Trifari) and materials like Bakelite are actively collected, and strong examples sell well. With costume jewelry, maker, design and condition matter more than the metal.
What makes vintage jewelry valuable?
Maker, materials, era, workmanship, rarity and condition, plus demand for that designer or period. No single factor sets the price. A signed piece in poor shape can sell for less than a good unsigned one.
How should I store and care for a jewelry collection?
Store pieces apart in soft pouches or a lined box so they can’t scratch each other. Keep them dry and away from perfume and chemicals, and use anti-tarnish strips with silver. Keep photos, marks and any appraisal figures on record. Your insurer or appraiser will tell you what documents they need. This is general information, not insurance or appraisal advice.
This guide is general information, not an appraisal. For insurance, estate or sale values, use a qualified independent appraiser.
Catalog your jewelry with confidence
You’ve sorted the box once. Log each piece’s marks and photos in Relicara so nobody has to sort it again.
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