Does Moissanite Get Cloudy Over Time? The Honest Answer

August 28, 2026

"Does moissanite get cloudy?" is one of the most searched questions about moissanite — and the answer matters enormously for anyone considering it for an engagement ring or daily-wear jewelry. Here's the complete, honest answer.

The Short Answer: Moissanite Does Not Permanently Cloud

Moissanite (silicon carbide) is chemically inert and physically stable. It does not undergo any internal chemical change that would cause permanent cloudiness. A moissanite stone purchased today will have the same optical clarity in 30 years as it does on day one — provided it is cleaned regularly.

This is a fundamental difference from cubic zirconia (CZ), which does permanently cloud and dull over time due to surface scratching. Moissanite does not scratch from everyday wear, so it does not develop the surface degradation that causes CZ to look cloudy. Read more: Moissanite vs. Cubic Zirconia: What's the Real Difference?

What Actually Causes Moissanite to Look Cloudy

If your moissanite looks dull or cloudy, the cause is almost certainly surface buildup — not stone degradation. The most common culprits:

Lotion and skincare products: Hand lotion, sunscreen, and moisturizer leave an oily film on the stone's surface that blocks light and creates a dull, cloudy appearance. This is the most common cause of moissanite cloudiness.

Soap residue: Washing hands with the ring on leaves soap residue on the stone, particularly on the underside where it accumulates in the setting. Soap residue is itself a source of dullness.

Natural skin oils: The oils from your skin transfer to the stone with every touch. Over days of wear without cleaning, this creates a film that reduces brilliance.

Hard water deposits: In areas with hard water, mineral deposits can accumulate on the stone's surface, creating a white, chalky film.

The oil slick effect: A thin layer of oils can create an iridescent surface film — a rainbow sheen on the stone's surface (distinct from the fire inside the stone). This is completely harmless and removed by cleaning. Read more: What Is a Moissanite Oil Slick?

How to Fix Cloudy Moissanite

The fix is simple: clean the ring. A 10–20 minute soak in warm water with a few drops of mild dish soap, followed by gentle scrubbing with a soft toothbrush, removes virtually all surface buildup and restores full brilliance. Read our complete guide: How to Clean a Moissanite Ring at Home.

If cleaning doesn't fully restore brilliance, a professional ultrasonic cleaning at a jeweler will. Read more: Can You Use an Ultrasonic Cleaner on Moissanite?

How to Prevent Cloudiness

• Clean your ring once a week if worn daily
• Remove your ring before applying lotion, sunscreen, or perfume
• Remove your ring before washing dishes or cleaning with chemical products
• Store your ring in a clean, dry place when not wearing it
• Have it professionally cleaned and inspected annually

Read our complete care guide: Moissanite Care Guide: Keep Your Jewelry Sparkling Forever.

What About Long-Term Wear? (10, 20, 30 Years)

Moissanite owners who have worn their rings for 10+ years consistently report that the stone looks identical to when they bought it — provided they clean it regularly. There is no internal degradation, no permanent cloudiness, no color change. The stone is chemically and physically stable for a lifetime of wear. Read more: What Does Moissanite Look Like After 10 Years? and How Long Does Moissanite Last?

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