What does 925 mean on jewellery? If you’ve noticed this stamp on a ring, necklace or bracelet, you might wonder whether the piece is real silver. Fortunately, 925 is a trusted quality mark used across the UK jewellery industry.

In this guide, you’ll learn exactly what the 925 stamp means, how it relates to sterling silver and, most importantly, how to check if your jewellery is genuine.

What does 925 mean on jewellery?

The number 925 means the jewellery contains 92.5% pure silver. The remaining 7.5% usually consists of copper. As a result, this added metal strengthens the silver and makes it suitable for everyday wear.

Is 925 real silver?

Yes. Jewellery stamped 925 is known as sterling silver. In fact, this is the official standard used in the UK for quality silver jewellery.

Why isn’t jewellery made from 100% silver?

Pure silver (999) bends very easily. Therefore, jewellers add a small amount of copper to improve strength and durability. This combination creates a metal that lasts longer while still looking beautiful.

Where to find the 925 stamp

You will usually find the stamp in these places:

  • Inside ring bands
  • On necklace clasps
  • On bracelet tags
  • Behind earring posts

925 vs other silver marks

999 silver

This mark shows 99.9% pure silver. However, it is softer and more delicate.

800 silver

This contains less silver and often appears in vintage jewellery.

Silver plated

In this case, a thin layer of silver covers another metal.

Does 925 silver tarnish?

Yes. All sterling silver tarnishes over time because it reacts with air and moisture. However, this is completely normal and easy to clean.

How to check if 925 silver is genuine

To be sure your jewellery is real, you can:

  • Look for UK hallmarks
  • Check whether it reacts to a magnet
  • Buy from reputable jewellers

Is 925 silver good quality?

Yes. Sterling silver offers an excellent balance of durability, affordability and beauty. As a result, it works perfectly for everyday jewellery.

FAQ

Can 925 silver turn green?

Sometimes. Copper oxidation can leave a green residue on skin. However, it is harmless.

Is 925 silver hypoallergenic?

Usually. However, people with metal allergies should still be cautious.

Does 925 silver fade?

No. Although it tarnishes, you can always polish it back to its original shine.