What is Moissanite | Moi Moi Australia

Frequently Asked Questions

Q: What is Moissanite?

Moissanite is the most brilliant jewel in the world. It has more brilliance, fire and lustre than any other gemstone including diamond.
Q: Do people buy Moissanite rings for engagements and weddings?

Absolutely. Engagement rings form 70% of our sales. Due to Moissanite’s durability, value and brilliance that lasts forever, it is very popular for engagement rings. It is without a doubt, the best diamond alternative available.

Q: Is Moissanite graded with the Diamond's 4 C's?

While it looks like diamond, Moissanite is a different jewel than diamond with a different chemical composition. As such, Moissanite is not graded using the diamond grading system.
Q: What qualities of Moissanite give it such exceptional brilliance?

The Refractive Index (RI) of a gemstone is the most important optical property affecting its potential brilliance (sparkle). With an RI of 2.65-2.69, Moissanite displays more brilliance than diamond (RI 2.42) or any other popular gemstone, such as ruby (RI 1.77) and sapphire (RI 1.77).

Q: Does my Moi Moi Moissanite jewellery come with a guarantee? 
 Yes. All Moi Moi Moissanite jewellery is guaranteed against any manufacturing defects for the first 6 months.  Your Moissanite stones also come with a Certificate of Authenticity. 

Q: Will Moissanite ever lose its brilliance, become cloudy or change colour?

No, because Moissanite is made from a natural mineral, it will maintain its appearance forever.

Q: How is Moissanite made?

Single-crystal Moissanite is created through a patented thermal growing process, the specifics of which are proprietary. Made from the natural mineral Silicon Carbide, the process is very difficult and expensive, thus preventing mass production.

Q: Where does the name Moissanite come from?

Moissanite was named in honour of its discoverer, French Nobel Prize-winner, Dr. Henri Moissan.

Q: Is Moissanite a diamond simulant or a diamond imitation?

NO! Diamond simulants or imitations are Cubic Zirconia, which are commonly called CZ. These simulants are disguised and marketed under many branded names. Consumers are confused, as some dishonest jewellers would call it a simulant but would not disclose it as CZ even when asked directly. CZ can be distinguished easily as it is glass-like and has a "transparent" look about it, which will go cloudy over time. Moissanite is a jewel in its own right with its own unique properties.

Q: Does Moissanite become cloudy like CZ (cubic zirconia)?

No. CZ or zirconium oxide is unstable at room temperature and because of its instability it has a tendency to change its appearance and colour over a short time. CZ is also porous and once it is filled with cosmetics, lotion, perfume or dirt it will become cloudy, and its cloudiness is irreversible. Moissanite will never become cloudy.

Q: What gives Moissanite its superior fire?

Moissanite’s properties and master cutting creates high dispersion (“fire”). Moissanite's dispersion is 0.104, which means it has more fire than diamond at 0.044. This is illustrated here. Fire is one of the three attributes that make up the beauty of a jewel.

Q: Will Moissanite scratch or break easily?

No. Moissanite is durable and tough and a great jewel for every day wear. It is extremely resistant to scratching and abrasion. However, just like diamond, Moissanite is not indestructible.

Q: Does Moissanite test positive as a diamond?

Yes, using conventional testing equipment such as a handheld diamond tester Moissanite will test positive as a diamond. Using this method, many jewellers still cannot differentiate Moissanite from Diamond.

Q: Why do you say Moissanite is more beautiful than a diamond?

Gemologically, Moissanite has more brilliance, more fire, and more lustre than any jewel, including diamond. These qualities define the beauty of a jewel, according to the Gemological Institute of America.