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The more you discover its beauty, the more you will want it in your life.
Discover the appeal of moissanite through GYPPHY.
Moissanite strongly disperses light, which is why its fire is sometimes described as approximately 2.5 times that of diamond.*
Under indoor fluorescent lighting it can sparkle with rainbow colours, while in natural light it can appear colourless and clear, like diamond.
*This refers to approximately 2.5 times the light dispersion, not to brilliance that is 2.5 times better than diamond. Each stone has its own beauty; this is not a judgement of superiority.
Moissanite is made of silicon carbide (SiC). Its structure gives it strong toughness and resistance to chipping or breaking on impact.
Its hardness is also second only to diamond (see the table below), making its surface highly resistant to scratches.
Moissanite tends to repel oils. Some natural gemstones attract oils and can become cloudy with use; moissanite is less prone to this, making it well suited to everyday wear.
Moissanite is lighter than diamond (see “Specific gravity” in the table below).
Gemstone weight is measured in carats (ct). To help you visualise size, GYPPHY lists diamond-equivalent carat weights rather than the actual weight of the moissanite.
Successful synthesis and stable production have made it possible to offer high quality at an accessible price for everyday enjoyment, one of the reasons for moissanite’s popularity.
| Property | Moissanite | Diamond | Cubic zirconia |
|---|---|---|---|
| Chemical composition | SiC | C | CZ |
| Refractive index | 2.65–2.69 | 2.4 | 2.13 |
| Dispersion | 0.104 | 0.044 | 0.060 |
| Specific gravity | 3.21 | 3.52 | 3.8 |
| Mohs hardness | 9.5 | 10 | 8.5 |
| Cleavage | None | Present | None |
| Affinity for oils | None | Present | None |
Moissanite is not a lab-grown diamond.
Both can be created in a laboratory, which sometimes causes confusion.
Just as lab-grown diamonds are diamonds made by human processes, lab-created moissanite reproduces the extremely rare natural mineral moissanite.
Moissanite is made of silicon carbide (SiC), while lab-grown diamond is made of carbon (C). They are different materials.
Moissanite’s story began in 1893, when French scientist Henri Moissan discovered it in a meteorite in northern Arizona, USA.
Because natural moissanite is extremely rare, research continued, and lab-created moissanite was introduced to the world in 1998.
It was initially difficult and costly to produce. Advances in technology have since made it more affordable.
Moissanite contains carbon, as diamond does, and the two can be difficult to distinguish without specialist testing equipment.
Although visually similar, moissanite is a different gemstone with an identity and beauty of its own.
As a factory-created stone, it avoids the child labour and conflict-resource issues associated with mining in this industry.
It also makes secondary use of materials used in the semiconductor industry, rather than requiring large amounts of electricity solely for moissanite production.
Moissanite does not have a diamond grading report, but an identification report can confirm whether a stone is moissanite.
A diamond grading report evaluates diamond quality, including the 4Cs: carat, cut, colour and clarity.
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