When shopping for silver jewellery, you’ve probably come across the term “925 Silver” or “Sterling Silver.” At first glance, it may seem like all 925 silver jewellery is the same. But in reality, the quality, durability, and even safety of your jewellery can vary widely depending on the metals mixed with silver.
Pure silver is beautiful but soft, making it unsuitable for everyday jewellery. To strengthen it, jewelers blend silver with other metals.
When something is labeled 925 silver, it means the jewellery contains:
- 92.5% pure silver
- 7.5% other metals
This alloy is what we know as sterling silver.
The Role of Other Metals
The remaining 7.5% can be made up of different metals, and this is where big differences occur. The most common and safest alloy is copper, which gives sterling silver strength while keeping it skin-friendly.
But some manufacturers use other metals, including:
Nickel – Strong and inexpensive, but one of the most common causes of skin allergies and irritation.
Zinc or Tin – Sometimes used, but less durable.
Germanium or Platinum – Premium metals that improve tarnish resistance and longevity.
The alloy mix impacts not just durability and shine, but also how safe the jewellery is for your skin.
However, in certain cases where cost cutting is the priority, other elements like Nickel, Lead or Cadmium could be added to the alloy. This is what you need to watch out for.
Safety Concerns: Nickel, Lead, and Cadmium
While high-quality sterling silver is safe, there are risks with low-cost or poorly regulated jewellery.
Nickel: A frequent allergen that can cause rashes and itching in sensitive skin.
Lead: Occasionally used in cheap alloys to add weight or make jewellery easier to mold. Lead is highly toxic, especially if jewellery is worn daily or handled by children.
Cadmium: Sometimes used as a filler metal or to reduce melting points. While simply wearing a piece of cadmium-containing jewellery on your skin is not considered a major risk for adults, the danger increases significantly with ingestion, mouthing, or prolonged exposure. This is a particular concern with children's jewellery as it can affect brain and bone development. Long term Cadmium exposure can also harm the kidneys, lungs, and bones.
Browse Nickle, Lead and Cadmium free daily wear Sterling Silver Jewellery in our Everyday Collections.
How to Choose Safer 925 Silver Jewellery
To make sure you’re buying genuine, safe sterling silver:
1. Look for quality stamps – Authentic jewellery should be marked with “925", “Sterling", or “Ster”.
2. Ask about the alloy – Reputable sellers will confirm their jewellery is nickel, lead and cadmium free.
3. Buy from trusted jewellers – Avoid very cheap or unbranded silver jewellery, especially from unknown marketplaces.
The Bottom Line
All 925 silver jewellery contains 92.5% pure silver, but it’s the remaining 7.5% that makes the difference. While high-quality sterling silver is typically alloyed with safe metals like copper, poorly made or counterfeit jewellery can contain harmful substances such as nickel, lead, or cadmium.
That means not all “925 silver” is created equal. Choosing trusted jewellers and asking the right questions ensures your jewellery is not only beautiful but also safe to wear for years to come.