Why 18-Carat Gold Is the Only Gold You Should Wear Every Day

At 75 per cent gold, 18-carat is not the purest gold you can buy, but it is the cleverest. Twenty-four-carat gold is too soft: a single knock against a drawer handle or a forgotten handshake can leave a permanent dent. Eighteen-carat gold, by contrast, is alloyed with copper, silver and sometimes zinc to create a metal that keeps its warmth and holds a shape. That balance is why the best everyday jewellery is rarely pure gold. It is also why, for Italian workshops, 750 is the number that matters.

Why 750 is the number to remember

When you buy an 18-carat piece in Europe, look for the small 750 stamp. The number means 75 per cent pure gold by weight, with the remaining quarter made of carefully chosen alloys. These alloys are not an afterthought; they determine whether the gold appears yellow, rose or green and how it behaves under pressure. A well-balanced 18-carat yellow gold bangle glows rather than shouts, and it will not distort when you reach for a bag or rest your wrist on a desk. For earrings, the same alloy offers enough stiffness to hold a post securely without bending out of shape.

The choice of alloy is also a choice about skin. Some people find high-purity gold reassuring, yet 24-carat pieces often contain no alloy to harden the metal and can feel surprisingly fragile. Eighteen-carat gold is a compromise in the best sense: it is generally well tolerated by skin, and it allows a goldsmith to make chain links that move fluidly without snapping. This is particularly important for a fine chain worn every day, where every flex works the metal. A well-made 18-carat chain can be strong enough for a pendant and light enough to forget you are wearing it.

How to wear and care for 18-carat gold

To keep an 18-carat piece as bright as the day it arrived, pay attention to real-life exposure. Chlorine, in particular, is an enemy of gold jewellery: a swim in a pool can strip or discolour the fine surface. So can abrasive cleansers, so remove rings and bangles before cleaning or gardening. A regular wash in warm water with a drop of mild dish soap, followed by a soft cloth, is enough to remove the day's hand cream and dust. Harsh ultrasonic cleaners are best left to the jeweller, because they can shake loose stones in softly set designs.

What makes 18-carat gold so right for gifting is that it asks nothing of the person wearing it. A pair of 18-carat gold earrings provides the pleasure of jewellery without the anxiety of a fragile heirloom. The metal will acquire a gentle patina over years of contact with skin, yet it can be polished back to its original lustre at any trustworthy jeweller. Choose pieces with smooth curves and sensible closures, and the 750 hallmark will do the rest. It is not a promise, but a formula for daily, decades-long use.