Gold plating is popular in the jewelry industry for offering the feel of solid gold at an affordable price. However, many people are curious about possible color changes. The frequent question is: does gold-plated jewelry turn green?
In this guide, we will explore the different types of gold-plated jewelry and explain whether they turn green or not. Knowing this will help you choose gold-plated options that maintain their color and last longer.
What is Gold-Plated Jewelry?
Gold-plated jewelry consists of a base metal (brass or sterling silver) that’s coated with a layer of gold. This process is usually done through electroplating, where an electric current bonds the gold layer onto the base metal. Standard gold plating ranges from 0.03 to 0.06 microns in thickness. In contrast, thick gold plating ranges from 0.5 to 2.5 microns or more, providing enhanced durability and a longer-lasting shine.
Does Gold-Plated Jewelry Tarnish?
Yes, it can tarnish over time. This happens when the thin gold layer starts to wear off, exposing the base metal (brass or silver)—which are naturally prone to oxidation and corrosion.
Does Gold-Plated Stainless Steel Turn Green?
Gold-plated stainless steel is one of the most reliable options due to the stability of its base metal. Stainless steel is naturally resistant to tarnishing. It even gets better when it’s a higher-grade stainless steel, like 316L that contains little to no copper.
Its durability is further enhanced when the gold layer is coated using PVD (Physical Vapor Deposition), which creates a strong, tightly bonded coating that significantly improves resistance to oxidation, corrosion, and everyday wear. .
Does Gold-Plated Brass Turn Green?
Yes, it is more likely to turn green. Brass contains copper, which reacts with moisture, sweat, and air. So, as the thin layer of gold wears off, the copper becomes exposed and oxidizes, forming green tints on the skin. This makes gold-plated brass jewelry less suitable for long-term wear, particularly in wet conditions and for people who have sensitive skin.
Does Gold-Plated Sterling Silver Turn Green?
Gold-plated sterling silver is less likely to turn green compared to brass, but it’s not completely immune. Sterling silver contains 92.5% pure silver and 7.5% alloy, typically copper. When the gold layer wears off, the exposed copper can react with moisture and air, sometimes leading to slight discoloration.
Why Does Gold-Plated Jewelry Turn Skin Green?
Here are the actual reasons why gold-plated jewelry turn green:
- The Role of Copper in Base Metals
Copper is largely present in brass and about 7.5% in sterling silver. When the gold plating wears off, the copper content becomes exposed to oxygen and moisture, causing it to oxidize and turn green.
- Reaction with Sweat and Body Chemistry
Most metals react with sweat, skin pH, and natural body oils. These body chemistry elements vary from person to person, and individuals with more of them will notice discoloration in their jewelry faster.
- Thickness of Gold Plating Layer
If the gold layer is thin, the base metal will get exposed faster and tarnish. This can be accelerated by daily wear, friction, poor maintenance, and improper storage.
- Environmental and Chemical Triggers
Humidity, water exposure, perfumes, lotions, and cleaning products all contribute to faster tarnishing of jewelry. These environmental elements weaken the gold layer and speed up oxidation.
How to Stop Gold-Plated Jewelry from Turning Green?
- Remove before water exposure: You should take off your gold-plated jewelry before showering, swimming, or exercising to reduce contact with water.
- Clean after each use: Use a cloth that is soft and dry to gently wipe your jewelry to remove the sweat, body oils, and any other residue that is on it.
- Store properly: Keep your jewelry in an airtight container or anti-tarnish bag to limit exposure to air and humidity.
- Avoid chemicals: Make sure your gold-plated jewelry does not come into contact with things that contain chemicals, like perfume, lotion, or any cleaning agents.
Does 14K Gold Plated Jewelry Turn Green?
Does 14K gold-plated turn green? Yes, it can turn green. 14K contains less pure gold, so if the plating wears down, there’s not much internal protection available. The base metal gets exposed and begins to gradually change color because of oxidation.
Does 18K Gold Plated Jewelry Turn Green?
It’s less likely than 14k gold plated jewelry, but still possible. 18K gold-plated jewelry has higher gold content, which acts as extra protection. However, if the gold plating is thin or wears off through daily use, green marks are imminent.
Does Gold Vermeil Jewelry Turn Green?
It rarely turns green. This is because custom gold vermeil jewelry is made of a thick layer of gold (2.5 microns+) over sterling silver base, which reduces the chance of green marks significantly. But over time, the gold layer will wear off and the sterling silver beneath will react with sweat or air and green marks may appear.
Does Gold-Filled Jewelry Turn Green?
It’s very unlikely. This is because custom gold-filled jewelry has a thicker layer of gold that’s bonded mechanically or chemically to the base metal. The gold layer makes up at least 5% of the jewelry’s total weight. This makes it resistant to wear and less likely to expose the base metal than standard gold plating.
Does White Gold-Plated Jewelry Turn Green?
No, because it is coated with rhodium—a highly reflective and corrosion-resistant metal. Rhodium doesn’t just make the jewelry more beautiful; it serves as a barrier that prevents oxidation and skin reactions.
But just like every other plating, the rhodium layer will fade off over time and expose the base metal, which may cause discoloration. The solution is to re-plate it.
Conclusion
So, does gold-plated jewelry turn green? Yes, it will over time. But by understanding the materials used in making the jewelry, you will be able to choose the right type of gold-plated jewelry that doesn’t easily turn green. The best thing to do is to talk to a reliable custom jewelry manufacturer for gold-plated pieces that maintain both appearance and performance over time.
