You Deserve an Honest Answer About Gold Jewelry
You've been there. A necklace you loved — one that looked gorgeous on day one — starts looking a little off around month three. The color shifts. A patch near the clasp goes dull. Eventually you catch a glimpse of something darker underneath, and you realize the gold wasn't really gold all the way through. It was a surface coating, and that surface is gone.
That's not a you problem. That's a gold plating problem. And once you understand why it happens, you'll never look at a "gold" jewelry tag the same way again.
What Gold Plating Actually Is (And Why It's Designed to Fail)
Traditional gold plating is an electrochemical process. A thin layer of gold is deposited onto a base metal — usually brass, copper, or zinc alloy — by running an electrical current through a chemical bath. The gold doesn't bond to the base metal at a molecular level. It sits on top of it, the way a coat of paint sits on a wall. It looks great. But it's only as permanent as surface adhesion allows.
How thin is that layer? Industry standards tell the story: "gold flashed" pieces carry less than 0.5 microns of gold — sometimes as little as 0.175 microns — and will wear off quickly. Even "quality" gold plating typically runs just 1 to 2.5 microns. For reference, a single human hair is about 70 microns wide. You are wearing a gold layer that is a tiny fraction of that.
When that layer meets the realities of real life — the salt in your sweat, the friction of a gym bag strap, the chlorine in a pool, the simple act of washing your hands — it doesn't stand much of a chance. The adhesion breaks down. The gold flakes, peels, or fades. And what's underneath often isn't pretty: brass and copper alloys can trigger skin reactions, and some cheaper base metals contain nickel, which the American Academy of Dermatology identifies as one of the most common causes of allergic contact dermatitis, affecting more than 18% of people in North America.
The PVD Difference: This Is Not the Same Process
PVD stands for Physical Vapor Deposition. It sounds technical, but the principle is worth understanding because it changes everything about how the coating behaves.
Inside a vacuum chamber, gold (or a gold-toned metal compound) is vaporized and accelerated toward the surface of the jewelry piece. The atoms don't land on top of the metal — they fuse into it at a molecular level, forming a bond that is fundamentally different from electroplating's surface adhesion. Think of the difference between gluing two pieces of wood together versus growing them together from the same root. One bond is mechanical. The other is structural.
The result is a coating that is 3 to 8+ microns thick — already several times thicker than standard plating — and dramatically harder. Traditional gold plating tests at roughly 100 to 200 on the Vickers Hardness scale. PVD coatings test between 1,500 and 4,500 HV. That's not a modest improvement. That's a different category of material.
In real-world abrasion testing, traditional gold plating shows significant wear and base metal exposure after 500 abrasion cycles. PVD-coated surfaces maintain their finish after 5,000 cycles with no visible scratching. In salt spray corrosion tests, gold plating can begin showing degradation within 24 to 48 hours. PVD-treated surfaces endure up to 1,000 hours without measurable degradation. Numbers like these are why PVD is used in aerospace components, surgical instruments, and industrial cutting tools — long before it found its way into jewelry.
Our Paperclip Heart Necklace is a good example of what this looks like in practice — a layered everyday piece that goes from morning workout to dinner without skipping a beat.
Why Stainless Steel Makes This Even Better
At Aella, our jewelry is 18K PVD-coated stainless steel — and both parts of that description matter.
The PVD coating gives you the gold finish that lasts. But the stainless steel base gives you a second layer of protection that gold plating simply cannot offer. Stainless steel is inherently corrosion-resistant, hypoallergenic, and nickel-safe for the overwhelming majority of people with metal sensitivities. So even in the unlikely scenario that the PVD coating eventually shows wear after years of use, what's underneath is still a clean, body-safe material — not a reactive copper or brass alloy that turns your skin green.
This "double-safe" quality is something we think about a lot. If you have sensitive skin, if you wear your jewelry through sweaty workouts, if you travel and your jewelry goes through everything you go through — the base metal is not a throwaway detail. It's part of the promise. If you want to dig deeper into the skin-safety side of this conversation, we covered it fully in our guide to hypoallergenic jewelry for sensitive skin.
Does PVD Jewelry Tarnish?
This is the question we hear most. The short answer: no, not under normal conditions — and certainly not the way gold plating does.
Tarnishing in traditional jewelry happens when the base metal oxidizes or reacts with moisture, sweat, and air. Because gold plating is so thin and eventually compromised, the base metal underneath becomes exposed and starts that reaction. PVD coatings, bonded at the molecular level and tested to resist corrosion for 1,000+ hours in salt spray environments, don't give moisture or oxygen the same foothold.
Most wearers report that their 18K PVD stainless steel pieces maintain their original finish for 3 to 5+ years of daily wear — far beyond the 12 to 18 months that even quality gold plating tends to hold up. Rinse your piece after heavy sweat or saltwater exposure, avoid prolonged soaking in harsh chemicals, and store it simply. That's genuinely all the care it needs.
One More Thing Worth Knowing: The Environmental Side
Traditional electroplating uses chemical baths — often containing cyanide compounds — that require careful hazardous waste management. PVD is a dry process, conducted in a vacuum. No toxic baths. No chemical runoff. It's a meaningfully cleaner manufacturing process, which matters to us and increasingly to the people who wear our pieces.
What to Look for When You Shop
Not all "PVD jewelry" is created equal. Here's what to check:
- Base metal matters: PVD on stainless steel is the gold standard. PVD on brass is better than plated brass, but you lose the hypoallergenic and corrosion-resistant benefits of the steel base.
- Coating thickness: Look for 3 microns minimum. Thicker is better.
- Honest language: If a brand calls their pieces "gold plated" and "PVD" interchangeably, ask questions. They are not the same process.
- Water resistance claims: Genuine PVD on stainless steel is waterproof. If a brand hedges heavily on water exposure, it may not be true PVD.
Our Bar & Coin Necklace is a favorite for exactly this reason — clean, minimal, and built for real days. Pair it with the Bamboo Link Cuff and you have a stack that genuinely holds up to everything — gym, travel, everyday life.
If you're shopping for someone who's always on the move, our traveler's gift guide is a great place to find pieces that are built for exactly that kind of life.
The Bottom Line
Gold plating flakes because it was never truly attached to begin with. A microscopically thin layer sitting on a reactive base metal was always going to lose that battle against real life. PVD works differently at the atomic level — harder, thicker, molecularly bonded, and built on a base that's already corrosion-resistant and skin-safe.
You don't have to choose between jewelry that looks beautiful and jewelry that lasts. That's the whole point of what we make.
Ready to wear gold that actually stays gold? Browse the full Aella collection — waterproof, tarnish-free, and made to keep up with you.
