Does moissanite get cloudy? What happens after five years

The short answer is no. Moissanite is a single crystal, not a coated stone, so there is no layer to wear off and no colour to fade. The longer answer is that rings get dirty, and a dirty stone looks cloudy.

What actually dulls a ring

• Surface film. Soap, hand cream, skin oil and hair product build a thin layer on the pavilion. Light stops returning; the stone looks flat. This is the most common cause and it is reversible.
• Dirt under the setting. A closed gallery or a halo traps debris that you cannot reach with a cloth.
• Worn rhodium. White gold plating wears at the shank and prongs, revealing warmer metal underneath. The stone is fine; the ring looks tired.
• Scratched metal. A polished shank picks up micro-scratches that scatter light, making the whole piece look less crisp.

How to clean it

1. Soak in warm water with a drop of washing-up liquid for ten minutes.
2. Brush gently with a soft toothbrush — under the stone, not just on top.
3. Rinse under warm water with the drain covered.
4. Dry with a lint-free cloth and leave it to air for an hour before wearing.

Ultrasonic cleaners are fine for moissanite but not for all settings — avoid them if the ring has glued elements or fragile antique construction.

What cannot be fixed by cleaning

Prong tips worn flat, a bent shank, a lost melee stone, plating worn through. Those are bench jobs. A five-year-old ring usually needs a polish and re-plating, not a new stone.

What about “oiliness”?

Some moissanite develops a faint haze from manufacturing residue in the setting, which shows up in the first weeks. It is polish compound, not the stone, and it comes out with a soak and a brush.

Five-year expectation

With monthly cleaning and a re-plating every 12–24 months on white gold, a moissanite ring looks the same at five years as at one. Without cleaning, it looks dull at six months — and that is true of diamond too.

Moissanite vs diamond → · Shop moissanite →