How I Identify, Date & Value Antique Jewelry (And What Every Collector Should Know)

I get asked about antique jewelry constantly. How do you know if it's real? How old is it? What's it worth? After years of handling pieces, I've learned that once you know what to look for, a lot of it becomes second nature. This guide is my attempt to share that knowledge with you, whether you're just starting out or you've been collecting for years.

What Makes Jewellery Antique vs Vintage?

I get asked this all the time. The short answer is that antique means over 100 years old, and vintage covers roughly 20 to 100 years. But the distinction matters more than you'd think when it comes to value and what you're actually collecting. A piece described as vintage Art Deco is very different from a genuine antique Georgian brooch, and the price should reflect that. If a seller is vague about the terminology, that's usually worth probing.

How I Identify the Period or Era

Once you know what to look for, dating a piece becomes second nature. I look at the design movement first, because each era has its own visual fingerprint.

Georgian pieces from 1714 to 1837 were handmade and often feature nature motifs, foliage and sentimental symbols. Gold was typically low carat and silver was common for settings. Victorian jewellery from 1837 to 1901 is hugely varied. Early Victorian is romantic and floral, while later pieces get darker and more sentimental. Think mourning jewellery, jet, hairwork and seed pearls. Edwardian pieces from 1901 to 1910 are light, lacy and delicate. Platinum became popular during this period and you'll see a lot of diamonds and pearls in intricate filigree settings.

Art Nouveau from around 1890 to 1910 is all about flowing organic forms, women's faces, dragonflies and orchids, with enamel work as a big feature. Art Deco from the 1920s to 1940s goes in the opposite direction with bold geometry, strong lines and contrasting colours. Onyx, coral and calibré-cut stones are hallmarks of the period. Then you have Retro pieces from the 1940s and 50s, which are big, bold and glamorous, with yellow and rose gold, large synthetic stones and chunky designs.

Reproductions are everywhere, so I always look at the construction too. Hand-cut stones, hand-engraving and signs of age in the metal all point to genuine age. If everything looks a little too perfect, I get suspicious.

Reading Hallmarks and Maker's Marks

This is where it gets really interesting. UK pieces carry assay office marks. London uses a leopard's head, Birmingham uses an anchor, Sheffield uses a rose and Edinburgh uses a castle. Alongside the assay mark you'll find a date letter, which changes each year and follows a cycle of letters and typefaces. Once you know the system, you can date a piece to the exact year it was assayed.

Foreign marks are their own rabbit hole. French pieces often carry an eagle's head for 18ct gold. Russian pieces from the Imperial era have their own distinctive system. Austro-Hungarian marks are incredibly varied by region and period. I'd recommend picking up a good hallmark reference book because it's one of the most useful things a collector can own.

Maker's marks are the small punches that identify the manufacturer or retailer. Some are well-documented and add significant value. Others are harder to trace. Either way, they're worth recording whenever you find them.

How I Assess Condition and Quality

Condition has a huge impact on value and I've learned to be methodical about it. I always check the clasps and fittings first. Are they original to the piece or have they been replaced? A replaced clasp isn't necessarily a dealbreaker but it should be reflected in the price.

I look for solder repairs by checking for discolouration or a slightly different metal tone at joins. Old repairs aren't always a problem but poor repairs can weaken a piece. I also check whether any stones have been replaced, because period-appropriate cuts matter. A Victorian brooch with modern brilliant-cut diamonds has usually had its stones swapped out at some point. And I look at plating wear on gold-filled and gold-plated pieces, which will show wear at the high points. This is normal but heavy wear affects value.

One of the most important calls a collector makes is knowing when to restore a piece and when to leave it alone. Over-polishing removes patina and can actually reduce value. I'd always rather see honest wear than an aggressively cleaned piece.

What Actually Drives the Value

Value in antique jewellery is never just one thing. Rarity matters a lot. How many similar pieces exist? Signed pieces by known makers are almost always worth more. Provenance adds value too, especially if the piece has an interesting story or a notable previous owner and that history is documented.

Materials obviously play a role. Gold carat, platinum, silver and the quality of any gemstones all matter. But materials alone don't tell the whole story. Gemstone cuts are increasingly important to serious collectors. Period-appropriate cuts like rose cuts, old mine cuts and old European cuts are sought after precisely because of their character and the way they handle light differently from modern precision cuts.

Market demand shifts by era too. Art Deco has been consistently popular for decades. Georgian pieces are rarer and command strong prices. Victorian mourning jewellery has a dedicated collector base. The honest truth is that value is ultimately what someone is willing to pay, and that changes with trends, with the economy and with who's in the room at auction.

Where and How I'd Buy Antique Jewellery

There's no single right answer here but there are better and worse approaches. Auction houses give you access to a wide range of pieces and the benefit of specialist cataloguing, but buyer's premiums can add 25 to 30 percent on top of the hammer price. Do your research before you bid.

Specialist dealers like us offer expertise, provenance research and the ability to ask questions before you buy. You're paying for knowledge as much as the piece itself, and that's usually worth it. Antique fairs can be great hunting grounds but the quality varies enormously. Go with a clear idea of what you're looking for and don't be afraid to walk away.

Red flags I always watch for are vague descriptions, reluctance to provide hallmark details, pressure to decide quickly and prices that seem too good to be true. If something feels off, trust that instinct.

How I Care for My Antique Pieces

Antique jewellery needs a different kind of care than modern pieces. When it comes to cleaning, gentle is the word. A soft cloth and where appropriate a mild soap solution is usually enough. I avoid ultrasonic cleaners for antique pieces because they can loosen old settings and damage fragile stones or enamel.

For storage I keep pieces individually, wrapped in acid-free tissue or in separate compartments. Metal-on-metal contact causes scratches, and some stones like opals and pearls need to breathe. When wearing antique pieces I'm always mindful of the settings, especially with old cut stones, and I take pieces off before anything physical.

If a clasp is failing, a stone is loose or you're unsure about a repair, bring it to a specialist. A good repair done properly is invisible. A bad one can be permanent damage.

If you'd like a piece assessed, valued or repaired, I'd love to help. Get in touch and we can take it from there.