No, moissanite doesn't get cloudy, change color or lose its sparkle with normal wear. When a moissanite looks dull, it's almost always a film of skin oil, lotion or soap on the surface, and it cleans right off. What can change over time is the metal around the stone, especially gold plating, so that's where most of your care should go.

Here's why moissanite stays the way it is, what makes it look cloudy in the meantime, and how to keep both stone and setting looking their best.

Why moissanite sometimes looks cloudy

A faceted stone sparkles because light enters it, bounces off the facets inside and comes back out toward your eye. Anything that coats the surface interrupts that path. A thin layer of hand cream, skin oil, sunscreen, soap scum or dust is enough to make a bright stone look milky.

The underside of the stone matters most. On a ring, the back of the stone sits close to your skin and collects residue quickly, and you can't see it when you look from above. Diamonds behave exactly the same way; they're famous among jewelers for attracting grease. So a hazy moissanite isn't a sign that anything has happened to the stone.

The simple test: clean it. If the sparkle comes back, it was residue.

How to clean moissanite safely

Moissanite itself is tough, but our pieces are set in gold-plated or rhodium-plated sterling silver, so be gentle with the metal:

1. Mix warm (not hot) water with a few drops of mild dish soap.
2. Soak the piece for a few minutes to loosen residue.
3. Brush gently with a soft toothbrush, paying attention to the back of the stone and around the prongs.
4. Rinse in clean water. Close the drain or use a bowl.
5. Pat dry with a soft, lint-free cloth and let it air-dry fully before storing.

What to avoid on plated jewelry: bleach, chlorine, ammonia-heavy cleaners, toothpaste, baking soda pastes and abrasive polishing cloths, all of which can wear the plating. Ultrasonic cleaners won't hurt the moissanite, but we'd skip them for plated and pavé pieces, since the vibration can stress small settings. Our step-by-step guide on how to clean moissanite has more detail.

Does moissanite change color?

Not in everyday wear. A moissanite's color comes from how the crystal was grown, and it stays that way.

Older moissanite and tints

Moissanite from the early 2000s often had a slight yellow or green tint, most noticeable in larger stones. That tint was there from the start; it didn't develop with time. Production has improved a great deal since then, and modern colorless moissanite is graded by sellers on the D–F colorless range. Our stones are listed as D color. For what those grades mean and how much they matter at different sizes, see our guide to moissanite color and clarity grades.

Lighting and metal can change how it looks

Even when the stone doesn't change, how it looks can. Warm indoor lighting makes any colorless stone look warmer than daylight does. Yellow and rose gold plating reflect into the stone and give it a slightly warmer face, while white gold and rhodium keep it icy. That's worth knowing when you choose a metal color, but it isn't the stone changing.

Heat at the jeweler's bench

One genuine quirk: under the intense heat of a jeweler's torch, moissanite temporarily changes color and returns to normal as it cools. It's only relevant for repairs, and jewelers who work with moissanite know to keep heat brief. It's not something that happens from sunlight, hot water or daily wear.

Does moissanite lose sparkle over time?

No. Moissanite rates about 9.25 on the Mohs hardness scale, just below diamond, so ordinary wear doesn't scratch it or round off its facet edges. Its high refractive index (about 2.65–2.69) and strong fire are properties of the material, so they don't fade.

That's a real difference from some other diamond alternatives:

If you're weighing those options, our comparison of moissanite vs cubic zirconia explains the differences in more depth.

What does change: the metal

This is the honest part that matters most for long-term wear. Our moissanite is set in 925 sterling silver, and most pieces are plated in 18K or 14K yellow, rose or white gold, or in rhodium. Plating is a thin layer of precious metal over the silver, and it can wear with friction and chemicals over time. Some listings also mention an extra protective film or anti-tarnish layer; those help, but they're surface layers too.

Plating wears fastest where a piece rubs: the palm side of a ring, the underside of a bracelet that rests on a desk, a clasp you open every day. Sweat, perfume, lotion, chlorine and salt water speed it up. Where the plating thins, the silver underneath can show and, like all silver, can tarnish. Worn or tarnished metal around a stone can make the whole piece look duller even though the moissanite itself is unchanged.

A few habits go a long way:

• Put jewelry on last. Apply perfume, lotion and hairspray first and let them dry.
• Take it off for swimming, showers, the gym, cleaning and gardening.
• Dry it if it gets wet, before you put it away.
• Store pieces separately in a soft pouch or lined box so harder stones don't rub against plated metal.
• Wipe gently with a soft, dry cloth after wearing.

Our guide to gold-plated sterling silver covers how plating wears and how to slow it down.

A simple routine that keeps it bright

You don't need special products or a lot of time. A light, regular routine does more than an occasional deep clean:

• After each wear: wipe the piece with a soft, dry cloth to remove skin oil and any traces of perfume or lotion before they build up.
• Every week or two: give pieces you wear daily a quick soak and soft brush in warm, soapy water, then dry them well.
• When you store it: keep each piece in its own pouch or compartment, away from humidity. A dry drawer is better than a steamy bathroom shelf.
• When you travel: pack jewelry in a pouch or small case so chains don't tangle and stones don't knock against other pieces.
• Every few months: look closely at prongs and small pavé stones, especially on rings and bracelets, which take the most knocks.

Rings worn all day, every day, need this most, because they meet soap, sanitizer and hand cream constantly. Necklaces and earrings, which mostly touch skin and hair, tend to stay brighter for longer between cleanings.

When to see a jeweler

If a stone still looks hazy after a good cleaning, or it seems to sit at an angle or move, have a jeweler check the setting. A bent prong or trapped debris under the stone can affect how it catches light. Small pavé stones, like those in tennis bracelets and eternity bands, are worth a quick look now and then, since daily knocks can loosen them.

Pieces made for everyday sparkle

Moissanite is a good choice for pieces you wear constantly, as long as the metal gets a little care. The Eterna moissanite eternity band and the Timeless tennis bracelet both keep their sparkle with a regular wash, and the Solitaire Icon necklace is an easy daily pendant. You'll find more lightweight, wear-every-day designs in our Everyday Sparkle collection.