Most people don’t give their jewellery much thought beyond when and how they wear it. A ring lives in a drawer, a chain gets worn daily, an old bracelet sits in a box because it feels a bit dated, but what is your jewellery really worth?
Value in jewellery isn’t always obvious, and it’s rarely tied to how flashy a piece looks.
Age, materials, craftsmanship and even small details you might never notice can make a significant difference. In many cases, jewellery that feels ordinary or purely sentimental turns out to be far more valuable than expected.
Here’s what to look for.
1. It’s Older Than You Think
Many jewellery owners underestimate the age of their pieces, especially when an item has been worn regularly or passed down informally through the family.
Jewellery doesn’t always look old, though. Styles often cycle back into fashion, and well-made pieces can hold up for decades without obvious signs of wear.
As a general guide, jewellery is considered vintage once it’s around 20 years old, while antique pieces are typically 100 years or more. That distinction matters because age can equal scarcity.
Hallmarks, maker’s marks and date letters are often the most reliable clues to a piece’s true age. These small stamps can reveal when and where a piece was made, the metal purity and even the workshop or designer behind it.
2. The Materials Aren’t What You Thought
One of the most common reasons jewellery is undervalued is simple misidentification.
Without professional testing, it’s easy to assume a piece is made from a lower-value alloy or costume metal, especially if it’s dull, scratched or heavier than expected.
In reality, many older pieces were made using higher-karat gold than is commonly used today. Eighteen- or twenty-two-carat gold, for example, can be mistaken for plated or mixed metal simply because it has softened or developed a natural patina over time.
Platinum and palladium are also frequently overlooked. Both metals are dense, durable, and often unmarked in ways buyers expect. Palladium has historically been mistaken for white gold, even though it carries its own market value and appeal.
The same assumptions often apply to gemstones. Natural stones are sometimes dismissed as synthetic or glass due to inclusions, colour variations or older setting styles. However, those natural characteristics can be exactly what distinguish genuine gemstones from modern lab-created versions.
3. It Has Hallmarks or Maker’s Marks You’ve Never Checked
Small stamps on jewellery are easy to ignore, especially when they’re worn, faint or tucked away inside a band or clasp.
Hallmarks can confirm metal purity, identify the country of origin, and in many cases, indicate the year a piece was made. What looks like a random symbol or set of letters can actually place your jewellery within a very specific time period and legal standard.
Maker’s marks add another layer of insight. These don’t always belong to famous designers, but that doesn’t make them unimportant. Independent workshops, regional jewellers and historical makers are still appealing amongst collectors, particularly when their work reflects a recognisable style or level of craftsmanship.
Even partial or heavily worn marks matter. Jewellery is handled, polished and resized over decades, which can soften or remove parts of a stamp. However, some trained professionals can identify a hallmark from a fragment or faint outline, using its shape, positioning and surrounding details as clues.
4. The Craftsmanship Feels Unusually High-Quality
Even without technical knowledge, sometimes you can sense when a piece of jewellery is different. It feels heavier in your hand, the stones feel secure and the details appear more intentional. These can all be signs of high-quality craftsmanship.
Hand-set stones tend to sit more naturally within their settings than those placed by modern machines. The claws or bezels may not look perfectly uniform, but they hold stones firmly and were shaped specifically for each gem.
You also want to look closely at the finer details. High-quality pieces usually show a sense of balance and symmetry, even when designs are intricate or ornate. Even weight is a clue. Jewellery made with solid metals and traditional techniques generally feels heavier than mass-produced alternatives.
5. The Gemstones Show Signs of Being Natural
When people think of valuable gemstones, they often picture stones that are perfectly clear and uniform. However, those traits can sometimes point to heavy treatment or laboratory creation.
Natural gemstones tend to show subtle inclusions, which are tiny internal features that formed as the stone developed over millions of years.
You may also notice slight variations in colour or depth, known as colour zoning, particularly in sapphires and other coloured stones. These natural inconsistencies are difficult to replicate and are often used by gemmologists to distinguish untreated stones from those that have been enhanced.
6. It Comes from an Inheritance or Estate
Jewellery that comes from an inheritance or estate is often undervalued by the people who receive it.
Estate jewellery can include elements that are no longer widely available. Discontinued gemstone cuts, stones sourced from now-closed mines and settings made using historical techniques can all add to a piece’s appeal.
There’s also a tendency to equate “old” with “outdated.” In reality, though, age can be an advantage. Jewellery from earlier periods was often made to last, using solid materials and careful craftsmanship. What may appear unfashionable at first glance can, in the right market, be considered distinctive or highly collectable.
A Professional Valuation Tells a Different Story
It’s easy to make assumptions about jewellery, especially those pieces you’ve owned for years or inherited without much background. But value isn’t always visible, and it rarely reveals itself without proper expertise.
A professional valuation brings clarity. It replaces guesswork with informed assessment and ensures your jewellery is accurately understood, whether you’re insuring it, considering a sale or simply want to know what you own.
If you suspect your jewellery may be worth more than you realise, contact Martins of Glasgow to arrange a professional jewellery valuation and get a clear, expert understanding of your piece’s true value.