Will a moissanite lose its shine after being worn for a long time?

From a professional perspective, here’s a clear answer for everyone: No!

The physical properties of moissanite (silicon carbide) are extremely stable, with a hardness of up to 9.25, second only to diamond, and a refractive index higher than that of diamond. This means that its optical performance and durability are outstanding, and it will never fade, turn yellow or lose its luster over time. Those who say that moissanite will “not shine” are completely mistaken!

Then why does it feel less bright than before?
There is only one truth: the surface is contaminated with grease and dirt!
Like diamonds, moissanite has the property of being “oil-attracting and water-repellent”. During daily wear, skin oils, skin care products, dust, etc. will gradually adhere to the surface of the gemstone, forming a thin film. This film will prevent light from entering and reflecting, making the moissanite look gray and dull, as if it has “lost its luster”.
But this is only a superficial phenomenon! Just like diamonds need regular cleaning, the “loss of luster” of moissanite is completely reversible.

90% of the “illumination failure” issues can be resolved by cleaning.
The following methods are recommended:
Preferred solution: Mild soapy water + Soft-bristled brush
Soak in warm water with a few drops of neutral detergent for 10 minutes;
Use a soft-bristled toothbrush to clean the back of the gemstone and the gaps between the prongs (where the dirt is mainly accumulated);
Rinse with water and then dry with a soft cloth.

Daily maintenance: Use a jewelry cleaning cloth to wipe it clean whenever necessary.
It is recommended that customers always keep a jewelry cleaning cloth at hand and wipe it after wearing the jewelry to reduce the accumulation of oil stains.
The ultimate advice for buyers
The “no-flickering” feature of the Mossan diamond is not a quality issue, but rather a maintenance problem!
Just give it a simple cleaning once a month, and it will remain shiny as new.
As a seller, I can confidently say: With proper maintenance, the luster of a sapphire can remain forever! It is not only a substitute for diamonds, but also a durable gemstone with excellent value for money.