Short answer: No, quality moissanite does not get cloudy, change color or lose its sparkle over time. It is a very hard, stable gemstone (about 9.25 on the Mohs scale). If moissanite looks dull, it is almost always because of a film of skin oils, lotion, soap or dust on the surface, and a simple clean restores its brilliance. Very old, early-generation moissanite could show a slight tint, but modern colorless moissanite is stable.
Worried that your moissanite will turn cloudy? Here is what actually happens and how to keep it sparkling.
This guide explains why moissanite sometimes looks dull, why the stone itself stays clear for life, how it compares with cubic zirconia, and the simple cleaning routine that keeps it bright. We also cover the few situations where dullness comes from the setting rather than the stone.
Why Moissanite Can Look Dull
A gemstone sparkles because light enters through the top, bounces off the angled facets on the back, and returns to your eye. Anything that coats those back facets stops light from bouncing cleanly, and the stone looks flat or milky. With moissanite, that coating is almost always everyday grime.
| Cause | What happens | Fix |
|---|---|---|
| Skin oils | A thin film blocks light | Warm soapy water soak |
| Lotion and makeup | Residue collects under the stone | Soft brush behind the setting |
| Hard water and soap | Mineral film on the surface | Rinse and dry with a soft cloth |
| Dust | Clogs the underside | Regular cleaning |
Rings collect grime fastest because hands touch everything: hand cream, cooking oil, sanitizer and soap. Earrings and pendants pick up hairspray, perfume and skin oil. Because the buildup happens slowly, many people don't notice it until they see a freshly cleaned stone next to theirs.
Signs your moissanite needs a clean
- Less fire: fewer rainbow flashes when you move your hand under a light.
- A milky center: the middle of the stone looks grey or flat instead of bright.
- Visible film: a cloudy or greasy layer on the back of the stone or around the prongs.
- Smudged top: fingerprints on the table facet that blur the sparkle.
Tip: Turn your ring over and look at the back of the stone. If you can see a grey or cloudy film there, the stone is simply dirty, and a five-minute clean will bring it back.
Why Moissanite Itself Doesn't Cloud
Some gems really can lose their looks over time. Soft stones get scratched, porous stones absorb oils, and some treated stones fade. Moissanite avoids all of these for a few reasons.
- Hardness: at 9.25 on the Mohs scale, moissanite is second only to diamond among popular jewelry stones. Household dust contains quartz, which is about 7, so everyday contact can't scratch its surface.
- Not porous: moissanite does not absorb oils, water or chemicals. Anything on it sits on the surface and washes off.
- Chemically stable: silicon carbide does not react with everyday substances like soap, sweat or perfume.
- Untreated color: colorless moissanite gets its color from how it is grown, not from a coating that could wear away.
That is why a well-cut moissanite bought today should look just as bright decades from now, as long as it is kept clean.
Cloudiness vs inclusions
Occasionally a stone has internal features from the day it was made, such as tiny needle-like inclusions. These don't spread or grow, and in good-quality moissanite they are not visible to the naked eye. If a stone looked clear when you bought it, it will stay that way. A haze that appears gradually is almost certainly on the surface, not inside the stone.
Does Moissanite Change Color?
Modern colorless moissanite is stable and does not change color permanently. Some moissanite can show a temporary slight color shift when exposed to very high heat, such as during jewelry repairs; it returns to normal as it cools. Jewelers familiar with moissanite handle this easily.
Earlier generations of moissanite were often near-colorless, with a faint yellow, green or grey tint visible in some lighting. That tint was part of the stone from the start, not something that developed with wear. Today's colorless grades look icy white, and their color stays the same for life.
If a moissanite seems to look warmer than it used to, check the metal around it. Yellow gold reflects warmth into the stone, and white gold that has lost its rhodium plating can look slightly yellow, which can make the stone seem tinted too.
Heat and jewelry repairs
When a jeweler resizes a ring or repairs a prong with a torch, moissanite can take on a temporary yellowish or greenish tint while it is hot. This is normal and fades as the stone cools. Let your jeweler know the stone is moissanite before any repair so they can plan the work. Moissanite is far more heat-tolerant than many gems, which makes repairs straightforward.
Moissanite vs Cubic Zirconia Over Time
Cubic zirconia is much softer (about 8 to 8.5 on the Mohs scale) and can become scratched and cloudy-looking over years of wear. Moissanite's hardness keeps its facets sharp and bright. Read our moissanite vs cubic zirconia guide.
This is where the "cloudy" reputation often comes from. People who owned cubic zirconia jewelry saw it go dull over the years and assumed every lab-made stone does the same. The difference is hardness: tiny scratches on a soft stone scatter light and look like haze, while a hard stone stays polished.
| Stone | Mohs hardness | After years of wear |
|---|---|---|
| Diamond (mined or lab grown) | 10 | Stays sharp and bright with cleaning |
| Moissanite | 9.25 | Stays sharp and bright with cleaning |
| White sapphire | 9 | Durable, but shows dirt easily and has less sparkle |
| Cubic zirconia | 8 to 8.5 | Can scratch and look hazy |
| Glass | About 5.5 | Scratches and dulls quickly |
If lasting clarity matters to you and you want a real diamond, a lab grown diamond is the only option harder than moissanite. It is chemically, physically and optically the same as a mined diamond. Browse lab grown diamonds to compare.
How Long Does Moissanite Last?
With normal care, moissanite lasts a lifetime and beyond. It does not wear down, fade, cloud or change color, so a ring passed down to the next generation will look as bright as it did on day one, provided it has been cleaned and the setting has been maintained.
The parts of a piece that do need attention over the years are the metal ones:
- Prongs: they thin slowly with daily wear and may need re-tipping after many years.
- Bands: ring shanks can thin at the bottom, especially on rings worn every day.
- Plating: rhodium on white gold may need refreshing every so often to keep its bright white color.
- Clasps and hinges: on bracelets and hoops, these take the most strain and are worth checking regularly.
Look after the metal and the stone will take care of itself. A quick check by a jeweler once a year, combined with regular cleaning at home, is all most pieces need. Gold in 14K or 18K and a well-built setting will keep a moissanite secure and shining for decades of daily wear.
Shown: Emerald Moissanite Tennis Bracelet A Modern Masterpiece of Sparkle
How to Keep Moissanite Sparkling
- Soak weekly: soak in warm water with a drop of mild dish soap for a few minutes.
- Brush gently: use a soft toothbrush, especially behind the stone.
- Rinse and dry: rinse and pat dry with a lint-free cloth.
- Last on: put jewelry on after lotion and makeup.
- Store separately: store pieces apart to avoid scratching other jewelry.
A deeper clean, step by step
- Prepare the bowl: fill a small bowl with warm (not hot) water and add a few drops of mild dish soap.
- Soak: leave the jewelry in for 10 to 20 minutes to loosen oil and lotion.
- Brush: work a soft toothbrush around the prongs, under the stone and along any pavé or halo stones.
- Rinse: rinse under warm running water, with the sink plug in or the piece held in a strainer.
- Dry and polish: pat dry with a lint-free cloth, then give the stone a light polish.
Ultrasonic and steam cleaners
Moissanite itself handles ultrasonic and steam cleaning well. The question is the rest of the piece. Vibration can loosen stones in worn settings, and some other gems or pearls in the same piece may not tolerate it. If you are unsure, stick with soap and water, or ask your jeweler.
What to avoid
- Chlorine and bleach: pool water and household bleach can damage gold alloys and weaken prongs over time.
- Abrasive cleaners: toothpaste, baking soda and scouring powders can scratch the metal.
- Harsh chemicals: strong bathroom and oven cleaners are best kept away from all jewelry.
- Paper towels and tissues: these can leave fibers and fine scratches on soft metal; use a soft cloth instead.
For metal care and storage tips across all your pieces, see our guide on how to clean diamond and moissanite jewelry.
Daily Habits That Prevent Buildup
Cleaning fixes dullness, but a few small habits mean you will need to clean less often.
- Last on, first off: put jewelry on after moisturizer, sunscreen, makeup, perfume and hairspray, and take it off before washing your face or applying creams at night.
- Remove rings for messy jobs: cooking with oil, kneading dough, gardening and cleaning all push grime under the stone.
- Take care with hand sanitizer: gels and creams leave a film on the back of the stone. Let them dry fully before touching your ring, or slip the ring off first.
- Avoid touching the stone: holding a ring by the stone leaves fingerprints on the top facet. Handle it by the band instead.
- Wipe after wearing: a quick wipe with a soft, lint-free cloth before you put jewelry away removes the day's oil before it builds up.
Caring for Different Moissanite Pieces
Engagement and wedding rings
Rings get dirty fastest. A weekly soak and brush keeps them bright, and a yearly prong check keeps the center stone secure. Browse moissanite engagement rings if you are still choosing.
Earrings
Studs and hoops collect hairspray and skin oil on the back of the stone. Clean the posts and backs as well, and wipe them before storing.
Tennis bracelets
Each link can trap dust and lotion. Brush gently along both sides, rinse well and lay the bracelet flat to dry. Check the clasp and safety catch regularly.
Pendants and iced-out pieces
Pavé and fully set pieces have many tiny stones close together. A soft brush and a longer soak help loosen buildup between them. Store chains flat or hanging so they don't tangle.
When Dullness Isn't Dirt
If you have cleaned your moissanite properly and it still doesn't look right, the cause is usually the setting rather than the stone.
- Worn rhodium plating: white gold is often plated with rhodium for a bright white finish. As the plating wears, the warmer gold shows through, which can make a stone look less icy. A jeweler can re-plate it.
- Scratched metal: a band covered in fine scratches looks matte and can make the whole ring seem dull. A professional polish restores the shine.
- Loose or tilted stone: a stone that has shifted in its setting returns light differently. Check for movement and have the prongs tightened.
- Buildup inside the setting: in closed-back or bezel settings, grime can collect where a brush can't reach. A jeweler can clean it properly.
- Chipped stone: rare, but a hard knock on a pointed tip can chip any gem. A chip catches light differently and may need the stone replaced.
A yearly check with a jeweler catches most of these early, especially on a ring you wear every day.
How to Spot Quality Moissanite
- Color: colorless grades (D to F) look icy white.
- Cut: good cutting maximizes brilliance and controls fire.
- Labeling: clear labeling and a certificate from the seller.
- Setting: secure prongs and a clean, well-finished setting that is easy to keep clean.
A well-cut stone also hides dirt a little better, because strong light return keeps it looking bright between cleans. Shapes with many facets, such as round brilliant and oval, show the most sparkle; step cuts such as emerald show dirt on the back facets more easily, so they benefit from more frequent cleaning.
Learn more in our guide to the best quality moissanite.
Moissanite at Ivevar
We use quality colorless moissanite in our Surat workshop, cut for brilliance. Every piece ships free worldwide, with 30-day easy returns. Browse moissanite bracelets.
You can also explore moissanite fine jewelry and moissanite daily wear pieces made in 10K, 14K and 18K gold and 925 sterling silver. If you have a design in mind, book a virtual appointment for a custom piece.
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Frequently Asked Questions
Does moissanite get cloudy over time?
No. Any dullness is surface buildup that cleans off.
Does moissanite lose its sparkle?
No. Its hardness keeps facets sharp for decades.
Can I shower with moissanite?
It will not harm the stone, but soap film can dull it; remove it when you can.
Can moissanite turn yellow?
Modern colorless moissanite is stable in color.
Can I use an ultrasonic cleaner?
Moissanite handles it well, but check the setting and any other stones first.
How often should I clean my moissanite?
A quick soak once a week keeps it bright. A deeper clean every month or two is enough for most people.
Can I swim with moissanite jewelry?
The stone won't be harmed, but chlorine can damage gold, and cold water can make rings slip off. It is best to take it off.
Why does my moissanite look cloudy right after cleaning?
Usually soap residue or water spots. Rinse well in clean warm water and dry with a lint-free cloth.
Will moissanite scratch?
Everyday wear won't scratch it. Only diamond and a few very hard materials can scratch moissanite.
Does sunlight or heat make moissanite cloudy?
No. Everyday sunlight, heat and cold have no lasting effect on moissanite's clarity or color.
The Bottom Line
Moissanite does not get cloudy. Keep it clean and it will sparkle for a lifetime.
If your stone looks dull, start with a warm soapy soak and a soft brush. If that doesn't fix it, have a jeweler check the setting and metal. In almost every case, the sparkle you fell in love with is still there, waiting under a thin layer of everyday life.
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