How to Care for 18k Gold Jewellery

By Clementines Jewellers  ·  The Journal  ·  May 2026

18k gold is one of the most beautiful metals you can wear. It's warm, substantial, and if you look after it properly, it only gets better with time. The goal of this guide isn't to make caring for your jewellery feel like a chore — it's to show you that a few small habits make the difference between a ring that ages beautifully and one that simply ages.

Everything here is what I actually tell clients. It's straightforward, and none of it requires specialist products or equipment.

Understanding 18k Gold

18k gold is 75% pure gold, alloyed with other metals — typically silver, copper, or palladium — to give it strength and wearability. Pure 24k gold is too soft for jewellery that's worn daily, so 18k is considered the sweet spot: rich in colour, durable enough for everyday wear, and significantly more precious than 9k or 14k alternatives.

Because of its composition, 18k gold can react mildly to certain chemicals, accumulate residue from lotions and perfumes, and develop a surface patina over time. None of this is cause for concern — it's simply the nature of a real precious metal being lived in. With the right habits, you'll preserve its brilliance for decades.

Your Daily Routine: The Golden Rule

This is the single most important habit to build: your jewellery goes on last, and comes off first.

Put your ring or necklace on after you've applied perfume, moisturiser, SPF, and any other products. The chemicals in these, even the ones that feel gentle, can dull the surface of gold over time and leave a filmy residue on diamonds and gemstones. They don't cause immediate damage, but they accumulate, and the effect is gradual and entirely avoidable.

Equally, take your jewellery off before you wash your hands with soap, apply hand cream, or do anything that involves prolonged contact with products. It takes seconds and it makes a real difference.

When to Take Your Jewellery Off

18k gold is resilient, but there are situations where wearing it causes unnecessary wear. These are the ones I always mention to clients:

• The gym. Gripping weights and equipment puts direct pressure and friction on a ring. Sweat is mildly acidic and can dull the surface over time. Leave it at home on training days.
• The shower. Shower gels, shampoos, and conditioners leave residue that builds up in settings and under stones. Hot water also loosens some adhesives used in certain settings. A quick daily shower won't cause crisis, but it's a habit worth breaking.
• Bed. You move during sleep more than you realise. Rings catch on fabric, bend slightly under pressure, and accumulate warmth and moisture. Taking it off before bed protects both the ring and the setting integrity over years of wear.
• Swimming. Chlorine in pools is particularly harsh on gold alloys and can cause surface discolouration. Cold water also causes fingers to contract slightly, which is when rings slip off most easily.
• Cooking and cleaning. Bleach, harsh detergents, and even prolonged contact with food acids can affect the surface. If you're cleaning with chemicals, remove your jewellery first.

How to Clean 18k Gold Jewellery at Home

You don't need anything specialist. This is all you need:

That's genuinely it. Do this once every two to three weeks and your ring will stay looking as it should. The toothbrush is key for rings with pavé or hidden halo settings, where product and soap residue tends to collect under and around the stones — this is what can cause diamonds to look dull over time. 

A word of caution: avoid ultrasonic cleaners at home unless you know your stone is set securely. They're effective, but the vibrations can loosen stones in older or more delicate settings. If you're ever unsure, bring it to your jeweller.

Storage

Gold is relatively soft compared to other materials it comes into contact with — including other jewellery. Storing pieces loose together causes fine scratches that dull the surface over time. Keep each piece in its own pouch or compartment, ideally in a lined jewellery box. The box your ring arrived in is perfect for this.

Avoid leaving jewellery on bathroom surfaces where it's regularly exposed to steam, moisture, and product residue, even when not being worn.

The Bigger Picture

The goal isn't to keep your jewellery looking brand new forever. It's to let it age beautifully — developing character, patina, and history — rather than simply wearing down through neglect.

Fine jewellery is made to be worn. An 18k gold ring that's been on someone's hand every day for twenty years, looked after well, has a quality to it that no new piece can replicate. The small habits above aren't about preservation for its own sake — they're about making sure that when your ring does show its age, it does so gracefully.

If you ever notice a stone feels loose, a setting looks bent, or the surface has developed marks that cleaning doesn't shift, have it looked at by a jeweller. Annual check-ups are a good habit for any piece you wear daily, and most jewellers will inspect a ring for free.