Most gold jewelry fades. It tarnishes, turns green, loses its shine. But 18K Gold PVD is different — and understanding why changes everything about how you buy jewelry.
If you've ever bought a beautiful gold necklace only to watch it fade after a few weeks, you already know the disappointment. The culprit is almost always the same: standard gold plating. A thin layer of gold applied over a base metal, wearing away with every shower, every workout, every day.
At Purajoia, we use a completely different process. 18K Gold PVD — Physical Vapor Deposition — is the technology behind every piece we make. And it's why we can say, with complete confidence: our jewelry never fades.
What Does PVD Mean?
PVD stands for Physical Vapor Deposition. It's a vacuum coating process used in aerospace, medical devices, and high-performance tools — and now, in the finest everyday jewelry.
In PVD coating, gold is vaporized in a high-vacuum chamber and deposited onto the metal surface at a molecular level. The result is a bond that is fundamentally different from electroplating — not sitting on top of the metal, but fused into it.
Standard gold plating: gold sits on top of the metal — easily scratched, worn away by moisture and sweat. PVD coating: gold is fused at the molecular level under vacuum conditions — 5 to 10 times more durable.
PVD vs Regular Gold Plating — The Real Difference
| FEATURE | GOLD PLATED | 18K GOLD PVD |
|---|---|---|
| Durability | Fades in weeks or months | Lasts for years |
| Waterproof | No — remove before swimming | Yes — fully waterproof |
| Sweat resistant | Tarnishes with sweat | Completely sweat-proof |
| Hypoallergenic | Often contains nickel | Nickel-free, skin-safe |
| Tarnish | Turns green or dark | Never tarnishes |
| Daily wear | Remove often to preserve | Never needs to be removed |
Why 18K — Not 24K?
Pure gold (24K) is actually too soft for everyday jewelry. It scratches easily and loses its shape. 18K gold — 75% pure gold mixed with other metals — strikes the perfect balance between richness of color and durability for daily wear.
The warm, deep gold tone of 18K is also considered the most beautiful — richer than 10K or 14K, without the slightly greenish tint of pure gold.
What This Means for You
- Shower, swim, sweat — your jewelry stays beautiful
- No green marks on your skin — ever
- Safe for sensitive skin and nickel allergies
- Wear it to sleep — it won't tarnish or bend
- No polishing, no special care, no worrying
This is what we mean when we say designed to never be taken off. Not just a slogan — a material truth, backed by technology.
18K Gold PVD — built to last
Waterproof, tarnish-free, hypoallergenic. Every piece, every day.
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