Why Is My Jewellery Giving Me an Allergic Reaction?

 

Jewellery is meant to be worn, enjoyed and treasured. But for some people, wearing a ring, necklace, bracelet or pair of earrings can result in redness, itching, irritation or even a rash.

When this happens, many people immediately assume they are allergic to gold, silver or another precious metal. That is not always the case.

In many instances, the reaction may be caused by another metal contained within the jewellery alloy particularly nickel, and in some circumstances zinc or other alloying metals.

Precious Metals Are Rarely Used Completely Pure

Most jewellery is manufactured from alloys rather than pure precious metals.

Pure gold, for example, is extremely soft and is generally mixed with other metals to create an alloy that is harder, more durable and suitable for everyday wear. The same principle applies to many other precious metals.

The metals added to an alloy can affect its:

• Hardness and durability
• Colour
• Strength
• Manufacturing characteristics
• Weight
• Cost

This is where understanding exactly what is in your jewellery becomes important.

Nickel: One of the More Common Causes

Nickel is well known as a cause of allergic contact dermatitis.

It has historically been used in jewellery alloys because it can provide hardness, strength and particular colour characteristics. White gold is one example where alloy composition is particularly important, although modern jewellery manufacturers have a number of nickel-free alternatives.

A person who is sensitive to nickel may develop irritation where the jewellery contacts the skin. This can include redness, itching, dryness, swelling or a rash.

The reaction does not necessarily mean that the jewellery itself is poorly made. It may simply mean that the wearer is sensitive to one of the metals contained in the alloy.

What About Zinc?

Zinc can also be used as an alloying metal in jewellery manufacturing. It can assist with casting and manufacturing characteristics and may form part of certain lower-cost alloys.

It is important, however, not to automatically assume that zinc is responsible for every jewellery reaction. Nickel sensitivity is much more commonly recognised as a cause of allergic contact dermatitis, while irritation can also have other causes.

This is why identifying the actual composition of the jewellery can be valuable.

Is It Possible to Be Allergic to Gold?

Yes, although reactions specifically to gold are less common than nickel allergy.

Some people can develop a sensitivity to gold itself or to particular gold compounds, while others may actually be reacting to one of the other metals present in the alloy.

For example, two pieces of jewellery can both be described as 18-carat gold, yet have different alloy compositions depending on the manufacturer and the metals used to create the final colour and properties.

This is particularly relevant when comparing yellow, white and rose gold.

Don’t Assume the Jewellery Is the Problem

A reaction can also be caused by factors other than the metal.

Moisture, soap, cosmetics, perspiration, dirt trapped underneath a ring and prolonged contact with the skin can all contribute to irritation. In some cases, what appears to be a metal allergy may actually be contact irritation from something else.

If you repeatedly experience a reaction when wearing a particular piece of jewellery, it is worth discussing it with a medical professional or dermatologist rather than simply guessing which metal is responsible.

Tell Your Jeweller Before You Buy

This is one of the most important pieces of advice for anyone who has previously experienced a reaction to jewellery:

Tell your jeweller before the jewellery is made.

If you know that you have a nickel sensitivity, for example, make sure the jeweller knows before they recommend an alloy or manufacture a ring, earrings or other piece specifically for you.

The same applies if you have previously reacted to a particular type of gold, white gold or other jewellery.

Your jeweller can then discuss alternative materials and alloys that may be more appropriate.

Why This Can Save You Money

A custom piece of jewellery can represent a significant investment.

Imagine ordering a beautiful ring, having it manufactured and paying for the finished piece only to discover that you cannot comfortably wear it because your skin reacts to the alloy.

A remake may be possible, but it can involve additional manufacturing costs, time and inconvenience.

A simple conversation before the jewellery is made can potentially prevent an expensive problem later.

Ask What Is Actually in the Alloy

Don’t be afraid to ask questions.

If you have sensitive skin or have previously experienced a reaction, ask your jeweller:

• What metals are contained in the alloy?
• Is the alloy nickel-free?
• What karat or fineness is the precious metal?
• Is the jewellery plated, and if so, with what?
• What will happen if the plating wears through?
• Is there an alternative alloy available?

A reputable jeweller should be able to explain the materials being used and discuss suitable alternatives.

Jewellery Should Be Beautiful and Comfortable

Buying jewellery is about much more than appearance. The metal, alloy, construction and intended use all matter.

If you have experienced an allergic reaction in the past, don’t keep it a secret from your jeweller. Tell them before you purchase or commission your next piece.

At DCLA, we believe that understanding jewellery begins with understanding what you are actually buying. Whether it is a diamond, a precious metal or a finished piece of jewellery, knowledge gives you confidence.

And when it comes to jewellery that sits directly against your skin every day, knowing what is in the metal can be just as important as knowing what is on the outside.

DCLA — Know Your Diamond. Know Your Jewellery. Know What You Are Buying.

Best Place to Buy Diamonds in Australia: Knowledge, Experience and Confidence

 

Buying a diamond is one of the most important jewellery purchases many people will ever make. Yet with thousands of diamonds available online and through jewellery stores, knowing where to buy a diamond, and who to trust, can be difficult.

Price, appearance and marketing can all influence a purchase, but there is another factor that should never be overlooked: knowledge.

At the Diamond Certification Laboratory of Australia (DCLA), decades of experience in the diamond industry have created a unique depth of knowledge, from rough diamond mining and trading, through to cutting, polishing, grading and certification.

That experience provides something a price tag alone cannot: confidence that you understand what you are buying.

Why experience matters when buying a diamond

It is easy to look at the famous 4Cs, carat, colour, clarity and cut and assume that buying a diamond is simply a matter of comparing numbers.

It isn’t.

Two diamonds with apparently similar specifications can look very different and can have significantly different values. Small variations in colour, clarity, proportions, fluorescence, transparency and cut can influence both appearance and price. DCLA notes that even small changes in the characteristics of a diamond can have a substantial effect on value.

This is where real diamond experience matters.

Someone who has spent decades examining diamonds doesn’t simply read a certificate. They understand how a diamond behaves, how it was cut, how its proportions affect light performance and how the individual characteristics of the stone influence its desirability.

From the mine to the polished diamond

The DCLA story is unusual because its expertise extends far beyond laboratory grading.

The Cohen family’s involvement in the diamond industry stretches back to Johannesburg in the 1970s. Bruce Cohen began his diamond career under the guidance of his father, David Cohen. Michael Cohen trained as a polisher, cleaver and marker with a major De Beers sightholder before establishing diamond offices and cutting operations in southern Africa. Roy Cohen subsequently became involved in rough diamond trading and mining interests.

That means the knowledge behind DCLA has been developed across virtually every stage of a diamond’s journey.

Rough diamond.
Mining.
Trading.
Planning.
Cleaving.
Polishing.
Grading.
Certification.
Buying and selling.

This provides a perspective that is difficult to replicate.

The advantage of buying with an independent laboratory behind you

One of the most important questions a diamond buyer should ask is:

Who graded the diamond?

A grading report should come from an independent laboratory rather than simply being an in-house document produced by the person selling the diamond.

DCLA specifically warns consumers to be cautious about reports produced by retailers or merchants who have a financial interest in the stone. Independent grading provides an additional layer of confidence because the laboratory is assessing the diamond rather than selling it.

DCLA is an internationally accredited diamond grading laboratory in Australia, with grading conducted in Sydney by qualified gemmologists according to IDC and CIBJO standards.

Don’t just buy the certificate, understand the diamond

Buying a diamond is one of the most important jewellery purchases

A certificate is important, but the real value comes from understanding what the certificate means.

A DCLA Diamond Grading Report records characteristics including:

• Carat weight
• Colour
• Clarity
• Cut
• Symmetry and polish
• Measurements and proportions
• Fluorescence
• Transparency
• Whether the diamond is natural or laboratory-grown
• Treatments or enhancements
• Unique identifying information

But experienced diamond professionals can take that information further.

They can help explain why one diamond may offer better visual performance than another, whether you are paying for characteristics that you can actually see, and where your money may be better spent.

The best diamond isn’t necessarily the most expensive

One of the biggest mistakes a buyer can make is believing that the highest grades automatically represent the best purchase.

The objective should be to find the right diamond for your budget and your priorities.

Perhaps you want maximum size.

Perhaps brilliance is your priority.

Perhaps you want exceptional colour.

Perhaps you want a diamond with a particular shape.

Or perhaps you want to maximise beauty while avoiding paying a premium for characteristics that make little visible difference to the eye.

This is where independent advice can make a significant difference.

Rather than simply selling you a diamond, the objective should be to help you understand why one diamond represents a better choice than another.

Buying online versus buying from an expert

Online diamond retailers can offer enormous choice and make it easy to compare prices.

But a photograph and a list of specifications cannot always tell the whole story.

A diamond is a three-dimensional optical object. Its proportions, facet arrangement, inclusions and light performance all contribute to how it looks in real life.

For a significant purchase, having access to someone who can explain the diamond in understandable terms can be invaluable.

And for buyers who want the ultimate level of confidence, an independent laboratory provides another important safeguard.

Australian consumer organisation CHOICE similarly recommends shopping around and obtaining an independent grading certificate for significant diamond purchases.

Confidence is more than a good price

The cheapest diamond is not necessarily the best diamond.

The best diamond is the one you understand, are confident in, and believe represents the right combination of beauty, quality and value for your circumstances.

This is why DCLA believes diamond buying should be an educational experience rather than simply a sales transaction.

With decades of experience extending from rough diamonds and polishing to modern scientific grading, DCLA brings together old-fashioned diamond knowledge and modern laboratory technology.

Every diamond certified by DCLA is examined in its Sydney laboratory, combining hands-on expertise with advanced instrumentation.

So, where is the best place to buy a diamond in Australia?

There are many places Australians can purchase diamonds, from online retailers and traditional jewellers to specialist diamond dealers.

But if you are looking for something more than a transaction, look for experience, independence, transparency and expertise.

That is what makes the DCLA approach different.

You are not simply buying a stone.

You are making a significant financial and emotional decision with the benefit of people who have spent decades working with diamonds at almost every level of the industry.

From the rough diamond to the finished gem, that experience matters.

And when you are spending thousands, or tens of thousands, of dollars on a diamond, having the right knowledge behind your decision can be worth far more than simply finding the lowest advertised price.

Buy with knowledge. Buy with confidence. Buy a diamond you understand.

Visit the Diamond Certification Laboratory of Australia

DCLA is an independent diamond grading and certification laboratory. A grading report describes the characteristics of a diamond and is not, by itself, a valuation or statement of market price.

Should You Upgrade Your Engagement Diamond?

 

An engagement ring is one of the most sentimental pieces of jewellery a person can own. It represents a promise, a relationship and a moment in time. But what happens when life changes?

Perhaps the couple’s financial position has improved significantly. Perhaps the original diamond was chosen when money was tighter, and she has always secretly dreamed of a larger stone or a completely different diamond shape. Or perhaps jewellery styles have changed and the original setting no longer reflects her personal taste.

This raises an interesting question: Should you upgrade an engagement diamond, or is the original stone too sentimental to replace?

At the Diamond Certification Laboratory of Australia (DCLA), we believe there is no single right answer. The decision comes down to the meaning attached to the original diamond, its quality and value, and what the owner wants from the jewellery today.

The Diamond May Be Sentimental — But the Memory Is Not Only in the Stone

There is a common belief that the original engagement diamond should never be changed because it represents the beginning of the marriage.

That is certainly a valid view.

For some couples, the original diamond is an important family heirloom in the making. It is the stone that was present when the proposal happened, and no larger or more valuable diamond could replace that emotional significance.

But jewellery can also evolve.

A diamond is a precious asset, but it is also a piece of jewellery designed to be worn and enjoyed. If circumstances change, there is nothing inherently wrong with changing the stone, redesigning the ring or even selling the original diamond.

The sentimental value does not necessarily disappear simply because the jewellery changes.

What If She Has Always Wanted a Different Shape?

Diamond shapes are highly personal.

Perhaps the original engagement ring contains a round brilliant diamond, but she has always preferred an oval, emerald cut, pear, cushion or radiant cut.

If the couple can now comfortably afford the diamond she always wanted, upgrading can be an opportunity to create the ring that reflects her personality today.

A larger diamond is not necessarily a better diamond. Shape, proportions, cut quality, colour, clarity and the overall design of the ring all influence its appearance.

This is where professional diamond advice becomes particularly important.

A significant increase in size may look impressive, but changing shape can sometimes produce an even more dramatic transformation without simply buying the biggest stone available.

Should You Trade In the Original Diamond?

There are several options.

1. Trade the Original Diamond Toward the New One

This is probably the simplest solution.

The original diamond can be professionally assessed and valued, with its value contributing toward the purchase of the replacement diamond.

However, owners should understand that the original retail purchase price is not necessarily what the diamond is worth when it is traded.

The diamond’s current quality, certification, market demand, proportions, colour, clarity and overall desirability will influence its value.

This is why an independent assessment and proper diamond grading can be extremely useful before making a decision.

2. Keep the Original Diamond

For some couples, this is the best of both worlds.

The original diamond can be removed from the engagement ring and preserved, while a new diamond becomes the centrepiece of the redesigned engagement ring.

The original stone can then remain with the family as an heirloom.

One day it might become a pendant, a dress ring or even another family member’s engagement ring.

The important point is that the original diamond does not have to disappear simply because the engagement ring has been upgraded.

3. Remodel the Original Diamond

Sometimes the diamond is not the problem the setting is.

An old-fashioned setting can make a beautiful diamond look dated.

A new setting can completely transform the appearance of the original diamond.

This can be particularly attractive when the diamond itself has strong sentimental value.

Instead of replacing the stone, the couple can create an entirely new piece of jewellery around it.

4. Create Another Piece of Jewellery

There is also the possibility of taking the original diamond out of the engagement ring and creating something completely different.

A diamond that has spent decades in an engagement ring could become a pendant, earrings or another ring.

This can be a wonderful way of preserving the original diamond while allowing the owner to enjoy a new design.

Is the Original Diamond an Heirloom?

This is perhaps the most important question.

If the diamond was passed down from a parent or grandparent, its emotional value may far exceed its monetary value.

In that situation, selling or replacing it may not make sense.

But if the diamond was purchased specifically for the original engagement and has no previous family history, the decision may be different.

A diamond can become an heirloom because of the story attached to it not simply because of its age.

Keeping the original stone means preserving that story.

But creating a new piece of jewellery from it can also preserve the story.

Jewellery Trends Will Change — But Quality Should Remain

Fashion inevitably changes.

The popularity of particular diamond shapes, settings, metal colours and jewellery styles can move in cycles.

What looks contemporary today may look dated in twenty years.

That does not mean an engagement ring should be changed every time fashion changes. Good jewellery should have longevity.

However, there is nothing wrong with updating a piece when the owner genuinely wants something different.

The key is not to confuse a temporary fashion trend with a genuine change in personal preference.

The Emotional Decision

Ultimately, upgrading an engagement diamond is not simply a financial decision.

It is worth asking:

Does the original diamond still make you happy?

Would you regret selling it?

Have you always wanted a different shape or larger diamond?

Would keeping the original diamond as an heirloom be meaningful to your family?

Could the original diamond be remodelled into another piece that you would actually wear?

If the answer is that the original diamond has enormous sentimental value, keep it.

If the answer is that it is simply an old piece of jewellery that no longer suits your taste, upgrading may make perfect sense.

And sometimes the best answer is both: buy the diamond you always wanted and preserve the original diamond for the next generation.

There Is No Rule That Says Jewellery Cannot Evolve

An engagement ring marks the beginning of a marriage. It does not have to remain frozen in time for the next fifty years.

People change. Relationships grow. Financial circumstances change. Tastes develop. Jewellery can change too.

The original engagement diamond may remain the most important diamond you ever owned even if it eventually becomes a pendant or is carefully stored as a family heirloom.

Alternatively, it may simply be a piece of jewellery that has served its purpose and can be traded toward something that better reflects your life today.

The right decision is the one that balances sentimental value, financial value and personal enjoyment.

At DCLA, we believe the most important step is to understand exactly what you have before deciding what to do with it. Professional diamond grading and identification can help establish the characteristics of the original stone, allowing you to make an informed decision about keeping, remodelling, trading or upgrading it.

After all, an engagement diamond is valuable but the story surrounding it can be priceless.

How to Clean a Diamond Ring at Home – Expert Advice from DCLA Diamond laboratory

Has your engagement ring lost its brilliance? Don’t worry—your diamond hasn’t lost its sparkle. It simply needs professional guidance and proper care.

According to Michael Cohen, DCLA’s diamond cutting and polishing expert at the Diamond Certification Laboratory of Australia, diamonds can maintain their brilliance for thousands of years. However, everyday wear allows oils, soap residue, dust and environmental grime to accumulate on the surface, temporarily dulling the stone’s fire and scintillation.

“Diamonds are the hardest natural substance on earth, ranking 10 on the Mohs scale,” explains Michael Cohen. “They don’t lose their sparkle permanently. What happens is a build-up of residue that blocks light from entering and reflecting properly through the facets.”

The good news? A careful home clean can safely restore that brilliance.

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Why Diamond Rings Lose Their Sparkle

Michael Cohen explains that daily exposure to skin oils, moisturisers, cosmetics, and dust causes a film to form on both the diamond and its setting. Over time, this build-up reduces light performance — the very element that makes a diamond appear lively and brilliant.

Regular maintenance prevents this dulling effect and keeps your diamond performing as it was originally cut to do.

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Can You Clean a Diamond Ring at Home?

Yes — and you should.

“Routine at-home cleaning helps maintain optimal light return between professional inspections,” says Michael Cohen. “However, it must be done correctly to avoid damage to the setting.”

While home cleaning maintains appearance, annual professional inspections remain essential to ensure the security of the stones and integrity of the setting.

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Safe DIY Cleaning Methods Recommended by Michael Cohen

1. Warm Water and Mild Dish Soap (Safest Method)

This is the preferred and safest home-cleaning method.

Steps:

• Mix warm (not hot) water with a drop of mild dishwashing liquid.
• Soak the ring for 15–20 minutes.
• Gently brush around the diamond and setting using a soft toothbrush.
• Rinse thoroughly in clean water.
• Pat dry with a lint-free cloth.

“This method effectively removes oil and debris without compromising the metal or diamond,” says Cohen.

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2. Warm Water and Glass Cleaner Solution

A diluted glass-cleaner solution (three parts water to one part ammonia-based glass cleaner) can assist in breaking down heavier residue.

However, Michael Cohen cautions:
“Use sparingly and avoid frequent exposure, particularly with white gold or treated metals.”

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3. Warm Water and Isopropyl Alcohol

Mix one part rubbing alcohol with three parts warm water and soak the ring for approximately 10 minutes. This helps dissolve oils efficiently.

Rinse thoroughly and dry completely before wearing.

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Jewellery Cleaning Products

There are commercial jewellery cleaners available, but Michael Cohen recommends using simple household solutions unless advised otherwise by a professional jeweller.

“Overly aggressive commercial cleaners can sometimes affect delicate settings, especially pavé work.”

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Common Mistakes to Avoid

Using Harsh Chemicals

Avoid bleach, chlorine, and strong household cleaners. These can damage metal alloys and weaken prongs.

Scrubbing Aggressively

Hard brushing can loosen claws and dislodge smaller accent stones.

Cleaning Over an Open Sink

Always clean over a bowl or with the sink plug in place to prevent loss.

Using Ultrasonic Cleaners on Pavé or Delicate Settings

Ultrasonic machines can loosen small stones in pavé or micro-set jewellery.

“Ultrasonic cleaners are effective but should be used under professional supervision, especially with intricate designs,” advises Cohen.

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Special Care for Mixed Gemstone Rings

If your ring includes pearls, emeralds, opals, or other delicate gemstones, do not use standard cleaning solutions without professional advice.

“Some gemstones are porous or treated. They require specialised care,” says Michael Cohen.

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Silver Bands Require Different Treatment

While gold and platinum respond well to soap-and-water cleaning, silver may require polishing solutions or a silver-specific cleaning cloth to restore its shine.

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How Often Should You Clean Your Ring?

Michael Cohen recommends cleaning your engagement ring every two to four weeks, depending on wear.

“If you wear your ring daily, regular light cleaning prevents heavy build-up and maintains maximum brilliance.”

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When to See a Professional

Even with proper at-home care, professional inspection is critical.

At least once a year, have your ring professionally cleaned and checked for:

• Loose stones
• Worn prongs
• Metal fatigue
• Structural integrity

“If you ever hear or feel movement in the stone, seek professional attention immediately,” advises Cohen. “A loose diamond can be lost far more easily than people realise.”

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How to Keep Your Diamond Cleaner for Longer

Michael Cohen suggests:

• Removing rings during cooking, gym sessions, gardening, or beach visits.
• Avoiding contact with sunscreen and heavy moisturisers.
• Storing rings safely when not worn.
• Using small ring trays at home to encourage proper habits.

“Mindful wear dramatically reduces build-up and preserves the craftsmanship of the setting.”

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Final Word

“Your diamond was cut to perform with precision and brilliance,” says Michael Cohen of the Diamond Certification Laboratory of Australia. “Proper cleaning allows light to enter and exit the stone as intended, restoring its fire, brilliance and life.”

With correct care and periodic professional inspection, your diamond ring will continue to shine for generations.