The Simple Science Explained

Ever wondered why some jewellery loses its shine while other pieces stay beautiful for years?

 

If you’ve ever opened your jewellery box to find a favourite necklace looking dull, dark or

discoloured, you’re not alone.

One of the most common questions we hear is:

“Why does jewellery tarnish?”

The good news is that tarnishing isn’t usually a sign of poor-quality jewellery. It’s simply science at work.

Let’s take a look at why it happens, which metals are affected, and how to choose jewellery that stays looking its best.

 

What Is Tarnish?

Tarnish is a natural chemical reaction that happens when certain metals come into contact with substances in the air, moisture or chemicals.

Over time, the surface of the metal reacts with oxygen, sulphur or other elements, creating a thin layer of corrosion. This is what causes jewellery to appear dull, darker than usual or even slightly black in places.

Unlike dirt, tarnish can’t simply be washed away as it forms on the metal itself.

Fortunately, in many cases it can be removed, and in some metals it’s far less likely to occur in the first place.

 

Which Jewellery Metals Tarnish?

 

Sterling Silver

Sterling silver is one of the most popular precious metals for jewellery.

It’s made from 92.5% pure silver combined with a small amount of other metals, usually copper, to increase its strength.

While silver itself doesn’t react strongly with oxygen, it does react with sulphur compounds naturally found in the air. This creates the darker coating we know as tarnish.

The good news? Sterling silver can usually be cleaned and restored to its original shine.

At Nugget & Co, our sterling silver jewellery is finished with rhodium plating, which helps protect the silver beneath, slows tarnishing and gives each piece a bright, luxurious finish.

 

Solid Gold

One of the reasons solid gold has been treasured for thousands of years is because it doesn’t tarnish in the same way as many other metals.

Pure gold is incredibly resistant to corrosion and oxidation, making it an excellent choice for our solid gold jewellery collection.

Because jewellery is typically made from gold alloys for strength, lower-carat gold can sometimes develop a slight surface dullness over many years, but it won’t tarnish like silver or plated jewellery.

That’s one of the reasons solid gold is such an excellent choice for everyday wear.

 

Gold-Plated Jewellery

Gold-plated jewellery is made by applying a very thin layer of gold over a base metal.

Over time, everyday wear gradually wears away this outer layer, exposing the metal underneath.

Once this happens, the jewellery may begin to tarnish, discolour or lose its original finish.

This is why plated jewellery often needs replacing sooner than solid gold.

 

What Makes Jewellery Tarnish Faster?

Several everyday factors can speed up the tarnishing process.

These include:

•             Moisture and humidity

•             Perfume, hairspray and skincare products

•             Sweat

•             Swimming pools and hot tubs

•             Household cleaning products

•             Air pollution

•             Storing jewellery in damp environments

None of these mean you’ve done anything wrong, they’re simply part of everyday life.

That’s why choosing high-quality materials makes such a difference.

 

Can You Prevent Jewellery From Tarnishing?

While no jewellery lasts forever without a little care, you can dramatically slow tarnishing by

following a few simple habits.

✔ Store jewellery somewhere dry.

✔ Put jewellery on after applying perfume or moisturiser.

✔ Wipe pieces with a soft jewellery cloth after wearing them.

✔ Keep pieces separate to avoid scratches.

✔ Choose precious metals designed to last.

 

Why We Choose Solid Gold & Rhodium-Plated Sterling Silver

At Nugget & Co, we believe jewellery should be made to live life with you.

That’s why we carefully select solid gold and rhodium-plated sterling silver jewellery that’s designed for everyday wear.

Our solid gold collections are naturally resistant to tarnishing, waterproof and made to last for generations.

Our rhodium-plated sterling silver offers the timeless beauty of silver with added protection to help maintain its brilliant shine for longer.

When you invest in quality materials, you’re investing in jewellery you’ll enjoy wearing year after year, not something you’ll need to replace after a few months.

The Bottom Line

Tarnishing is simply science.

It’s a natural reaction between certain metals and the world around us.

Understanding why it happens makes it much easier to choose jewellery that’s right for your lifestyle.

Whether you choose solid gold or sterling silver, looking after your jewellery and choosing well-made pieces from quality materials means you’ll enjoy them for many years to come.

After all, jewellery should be worn, loved and lived in.

Not hidden away in a jewellery box!

 

Frequently Asked Questions

Why does jewellery tarnish?

Jewellery tarnishes when certain metals react with oxygen, sulphur, moisture or chemicals in the environment. This creates a thin layer on the surface that causes the metal to appear dull or dark.

Does solid gold tarnish?

Solid gold is highly resistant to tarnishing because gold is a naturally stable precious metal. While lower-carat gold alloys may develop slight dullness over time, they won’t tarnish like silver or plated jewellery.

Why does sterling silver tarnish?

Sterling silver reacts with sulphur compounds in the air, creating a dark coating on the surface. This is completely normal and can usually be removed with proper cleaning.

Is tarnished jewellery damaged?

Usually not. Tarnish affects the surface of the metal and can often be cleaned away without damaging the jewellery.

How can I stop my jewellery from tarnishing?

Store jewellery somewhere dry, avoid contact with chemicals where possible, wipe pieces after wearing, and choose high-quality materials such as solid gold or rhodium-plated sterling silver for greater resistance to tarnishing.