Does Cubic Zirconia Get Cloudy? Causes & Fixes (2026)

Yes — cubic zirconia can look cloudy or foggy over time, but it's almost never the stone itself failing. In nearly every case, that dull film is soap scum, lotion, or perfume residue sitting on the facets, or micro-scratches from daily wear letting light scatter instead of bounce back sharp. The fix is usually a five-minute clean, not a replacement — and starting with a solid 925 sterling silver setting instead of a plated one keeps the metal around the stone from tarnishing and adding to the haze, which is exactly why our Round CZ Stud Earrings ($31.99) are solid sterling all the way through, not just on the surface.

Does Cubic Zirconia Get Cloudy? (2026)

Yes, cubic zirconia can develop a cloudy or hazy appearance, but the stone itself doesn't chemically degrade the way some porous or organic gems do — the cloudiness sits on top of the stone as residue or fine scratching, not inside it. Cubic zirconia is synthetic zirconium dioxide, a non-porous, lab-created material, so unlike a gem such as opal (which can genuinely dehydrate and craze over years) or a pearl (which can absorb oils and dull from within), CZ has nothing to break down internally. What people call “cloudy CZ” is almost always a removable film or a light-scattering scratch pattern — both correctable, neither permanent.

Why Is My Cubic Zirconia Cloudy?

Cubic zirconia usually turns cloudy for one of three reasons: a film of soap, lotion, or hairspray coating the facets, fine surface scratches that scatter light instead of reflecting it cleanly, or tarnish building up on the metal setting around the stone. CZ sits at 8.5 on the Mohs hardness scale — harder than glass rhinestones (roughly 5-6) but softer than moissanite (9.25) or natural diamond (10) — so it picks up fine surface scratches faster than those stones if it's worn during workouts, cleaning, or sleep. And when the setting is a base metal with a thin gold-flash plating rather than solid sterling silver, the metal itself can tarnish and cast a gray film that reads as a “cloudy stone” even though the CZ underneath is perfectly clear.

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How to Remove Cloudiness From Cubic Zirconia?

Soak the piece in warm water with a few drops of mild dish soap for 10-15 minutes, then brush gently with a soft-bristled toothbrush around the setting and behind the stone, rinse under warm water, and buff dry with a lint-free cloth. That routine clears the vast majority of cloudy CZ, since most of what's built up is soap, lotion, or oil residue rather than damage. Skip paper towels and tissue (they can leave micro-scratches), skip ultrasonic cleaners on plated pieces (heat and vibration can stress thin plating), and skip bleach or chlorine entirely — both can dull plating and loosen prong settings over repeated exposure.

How to Keep CZ From Getting Cloudy?

Put jewelry on last, after makeup, lotion, perfume, and hairspray have fully dried, take it off before swimming, showering, or working out, and store each piece separately in a soft pouch or lined box so it's not rubbing against other jewelry. Most cloudiness is preventable rather than inevitable — it's a residue problem, not an aging problem, so the pieces that stay clear longest are simply the ones kept away from lotion and chemicals in the first place. Wiping a piece down with a soft cloth after every wear, before it goes back in its box, keeps residue from ever building up into a visible film.

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Cubic Zirconia vs. Glass, Moissanite, and Diamond: Which Clouds Fastest?

Glass rhinestones cloud fastest, cubic zirconia and moissanite are close behind at a much slower rate, and natural diamond resists it best — but every faceted stone can still film up from soap and lotion regardless of hardness. The table below compares how each material typically dulls and what actually helps.

Is It Okay to Shower With Cubic Zirconia?

It's better to take CZ jewelry off before showering — it won't ruin the stone outright, but soap, shampoo, and conditioner residue is one of the most common causes of that cloudy film, and steady water exposure can speed up tarnish on settings that aren't solid sterling silver. If a piece does get wet occasionally, rinse it under clean water afterward and dry it fully before putting it back in a box, since trapped moisture is what actually accelerates tarnish on a metal setting.

Is Cubic Zirconia Still Good After 5 Years?

Yes, cubic zirconia holds up well after 5 years with normal care — the stone itself doesn't degrade with age, though it can show more surface scratches and a duller sparkle than day one if it was worn constantly without cleaning or was set in plated rather than solid metal. Solid 925 sterling silver settings don't flake or wear through the way thin gold-plated base metal can at the edges after years of daily contact, so the setting stays looking as fresh as the stone. A piece that's been cleaned regularly and stored properly can look nearly as sharp at year five as it did on day one.

Which Cubic Zirconia Piece Won't Cloud Up on You?

Choose a piece set in solid 925 sterling silver rather than plated base metal, and a simple, low-crevice design like a stud that's easy to wipe clean after every wear. That combination is what actually determines how fast a piece clouds — not the CZ itself, which behaves the same in any setting. Our Round CZ Stud Earrings ($31.99) are solid 925 sterling silver, hypoallergenic, and gift-ready out of the box, so there's no plating to wear through and no base-metal tarnish adding to the haze — just the stone, which a quick soap-and-water soak will keep sparkling for years.

For more on gemstone hardness and durability, see the Gemological Institute of America: https://www.gia.edu

Frequently Asked Questions

How to remove cloudiness from cubic zirconia?

Soak it in warm water with a few drops of mild dish soap for 10-15 minutes, scrub gently around the setting with a soft toothbrush, rinse, and buff dry with a lint-free cloth — this clears residue-based cloudiness in one pass for most pieces.

Is cubic zirconia still good after 5 years?

Yes — cubic zirconia doesn't degrade with age, so a piece cared for properly can still look sharp after 5 years, though it may show more surface scratches than day one if it was worn constantly without cleaning or set in plated rather than solid metal.

Is it okay to shower with cubic zirconia?

It's better not to — showering won't destroy the stone, but soap and conditioner residue is one of the leading causes of cloudy-looking CZ, and water exposure can speed up tarnish on settings that aren't solid sterling silver.

What causes cubic zirconia to look dull?

Dullness is almost always a film of soap, lotion, or hairspray on the facets, or fine surface scratches from daily wear scattering light instead of reflecting it — both are fixable with cleaning rather than a sign of a failing stone.

Does cubic zirconia scratch easily?

Not easily, but more readily than moissanite or diamond — CZ sits at 8.5 on the Mohs hardness scale, above glass rhinestones (5-6) but below moissanite (9.25) and diamond (10), so it can pick up fine scratches over years of daily wear without special care.

Is cloudy cubic zirconia a sign it's fake?

No — cloudiness is a cleaning and wear issue that affects genuine cubic zirconia just as much as any other faceted stone; it isn't evidence the stone is a lower-quality imitation like glass.

How often should you clean cubic zirconia jewelry?

Wipe it down with a soft cloth after wear that involved lotion, perfume, or sweat, and do a full soap-and-water soak whenever it starts to look filmy — pieces worn daily typically need that deeper clean more often than occasional-wear pieces.