Fine Jewelry · Buying Guide

Gold Jewellery & Sensitive Skin: Nickel, Allergies & What to Buy (2026)

By Tushar Leclerc · 6 min read

Last Updated: October 24, 2026

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Pure gold does not cause allergic reactions. Yet plenty of people react to "gold" jewellery, and the reason is simple once you know what gold jewellery actually is. This short guide explains what your skin is reacting to, why a higher karat helps, and exactly what to look for if your ears or skin are sensitive.

Why gold jewellery irritates skin

Gold on its own is too soft to hold a shape, so every piece of gold jewellery is an alloy: gold mixed with other metals for strength. Those other metals are what skin reacts to, and the usual culprit is nickel. Nickel allergy is the most common contact allergy there is, and it is what causes the classic itchy, red, sometimes weepy patch under a piece of jewellery.

The reaction is a true allergy, which means it can appear even after years of wearing something without trouble, and once your skin is sensitised to nickel it stays that way. It shows up most on earlobes, because a piercing puts metal in direct, constant contact with broken skin, and that is why a new piercing is the moment sensitive skin matters most.

The key point: the problem is the alloy, not the gold. Change the ratio of gold to alloy, and you change how likely a reaction becomes.

Karat and alloy: why higher helps

Karat measures how much of a piece is pure gold, out of 24. That single number also tells you how much alloy, and therefore how much potential nickel, is mixed in.

Higher karat means more gold and less of everything else, so an 18K piece simply has less room for nickel than a 10K one. That is the whole mechanism, and it is why people with sensitive skin are usually steered toward 14K or 18K.

Colour matters too. Yellow and rose gold are alloyed mainly with copper, silver and zinc, which rarely trigger allergies. White gold is the one to watch: it has traditionally been whitened with nickel and then rhodium-plated for shine. While the plating is intact it forms a barrier, but as it wears the nickel alloy underneath can reach the skin. For the most sensitive wearers, higher-karat yellow gold is the safest choice. Our guide to 10K, 14K and 18K gold goes deeper on the trade-offs.

Green finger, explained

A green mark under a ring is not an allergy and not a sign of fake gold. It is a chemical reaction, usually between the copper in the alloy and acids on your skin, sweat, lotions or cleaning products. The copper oxidises and leaves a harmless green or grey tint on the skin.

Because lower-karat gold holds more copper, it discolours more readily than higher-karat gold. Plated jewellery is worse again, since the thin gold layer wears through to a base metal that reacts freely. The same move fixes both the green mark and the itch: fewer non-gold metals, meaning solid gold in a higher karat. Keeping lotion and perfume off the metal, and taking jewellery off before swimming or cleaning, helps too.

What to buy: hypoallergenic earrings for new piercings

If your skin reacts, or you simply want to avoid the gamble, here is what to look for. These are the hypoallergenic earrings for new piercings and the everyday pieces worth choosing.

• Solid gold, 14K or 18K. Solid means gold all the way through, not plated. A higher karat keeps the alloy, and the nickel, to a minimum.
• Yellow or rose gold over white gold if you are highly sensitive, since those colours avoid the nickel that whitens white gold.
• Plain flat-back studs for a new piercing. Hypoallergenic flat back stud earrings sit flush against the lobe, so the post does not swing or snag while the piercing heals. Pair that shape with solid gold and you have the gentlest possible first earring.
• Simple over elaborate while a piercing settles. Less metal and fewer moving parts mean less friction on healing skin.

Every Riona earring is solid gold, made to order in 10K, 14K or 18K, so you choose the karat that suits your skin rather than taking whatever a piece happens to be. Our types of earrings guide covers the styles if you are deciding on a shape.

Round Solitaire StudFrom $690 Princess Solitaire StudFrom $380 Love Knot StudFrom $642 Heart StudFrom $618 Oval Halo StudFrom $819

Solid gold vs plated

This is the distinction that matters most for sensitive skin, and the one costume jewellery blurs. Solid gold is a gold alloy all the way through. Gold-plated is a microscopically thin layer of gold over a cheaper base metal, very often nickel. "Gold-filled" and "vermeil" are thicker versions of the same idea, but still a coating over another metal.

Plating wears. Once it does, your skin meets the base metal underneath, which is why so many people react to inexpensive "gold" jewellery after a few weeks. A solid gold piece has no such layer to wear through, so what touched your skin on day one is what touches it years later. It costs more up front and outlasts many times its price in plated pieces.

Riona makes solid gold only, never plated, in 10K, 14K and 18K. If you want to check any piece of gold you already own, our guide on how to tell if gold is real walks through the stamps and tests.

Emerald HuggieFrom $718 Pave Circle HoopFrom $798 Round Solitaire RingFrom $1,105 Pear Solitaire RingFrom $1,087 Pear Halo RingFrom $1,209

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