What is Moissanite?

When it comes to buying an engagement ring or other fine jewelry, most people are familiar with diamonds. However, in recent years, moissanite has become an increasingly popular alternative to diamond. Moissanite is a lab-created gemstone that has many of the same qualities as diamond, but at a much lower cost. But, can jewelers tell moissanite apart from diamond?

Before we answer that question, let’s take a closer look at what moissanite is. Moissanite is a mineral that was first discovered in a meteorite by Henri Moissan in 1893. It is made up of silicon carbide and has a similar chemical composition to diamond. While natural moissanite is extremely rare, it can be created in a lab using a process called chemical vapor deposition.

Moissanite has a number of unique characteristics that set it apart from diamond. It has a higher refractive index, meaning it reflects more light than diamond, giving it a greater brilliance and sparkle. It also has a higher dispersion, meaning it creates more colorful flashes of light than diamond. Additionally, moissanite is harder than most gemstones, including sapphire and ruby, but not quite as hard as diamond.

While moissanite and diamond share some similarities, they are not identical. It is important to note that moissanite is not a diamond imitation or a diamond simulant, but a gemstone in its own right. Now that we have a better understanding of what moissanite is and how it differs from diamond, let’s explore whether jewelers can tell the difference.

Jewelers’ Training and Experience

Jewelers undergo extensive training and education to become experts in their field. They are trained to identify and evaluate diamonds and other precious gemstones, and are typically required to pass a certification exam before they can work with these materials. However, moissanite is a relatively new gemstone, and its identification is not always included in jewelers’ training.

While some jewelers may have experience with moissanite, others may not be familiar with it at all. Those who specialize in diamond identification may be better equipped to identify moissanite, as they have a deep understanding of the chemical and physical properties of diamonds. However, this does not guarantee that they will be able to identify moissanite with 100% accuracy.

It is worth noting that some jewelers may not have any interest in identifying moissanite, as it is often used as an affordable alternative to diamond. These jewelers may choose to sell moissanite as if it were a diamond, without disclosing the true nature of the stone to their customers. This is a deceptive practice that is unfortunately common in the jewelry industry.

In the next section, we will explore the methods used to identify moissanite and how jewelers can tell it apart from diamond.

Identifying Moissanite

There are several methods that can be used to identify moissanite, including visual inspection, thermal testing, and spectroscopy.

Visual inspection is one of the most common methods used by jewelers to identify moissanite. Moissanite has a different crystal structure than diamond, which can be seen under magnification. Moissanite crystals have a double refraction pattern, meaning they create a “sparkle effect” that is different from diamond. Additionally, moissanite has a different color and clarity than diamond, which can also be seen under magnification.

Thermal testing is another method used to identify moissanite. Moissanite has a higher thermal conductivity than diamond, meaning it conducts heat more quickly. A thermal tester can detect this difference and help jewelers determine whether a stone is moissanite or diamond.

Spectroscopy is a more advanced method used to identify moissanite. It involves analyzing the stone’s light spectrum to determine its chemical composition. Moissanite has a unique light spectrum that is different from diamond, making it possible to identify the stone using this method.

While these methods can be effective in identifying moissanite, they require specialized equipment and expertise. Jewelers who are not trained in moissanite identification may not have access to these tools, or may not know how to use them effectively.

It is also worth noting that moissanite can be difficult to identify in certain settings. For example, if a moissanite stone is cut to mimic the shape and proportions of a diamond, it may be difficult to distinguish between the two without specialized equipment. Additionally, moissanite can be treated with coatings or other enhancements to make it more diamond-like in appearance, further complicating the identification process.


So, can jewelers tell moissanite apart from diamond? The answer is… it depends. Jewelers who specialize in diamond identification and have experience with moissanite may be able to distinguish between the two with relative ease. However, not all jewelers have this level of expertise, and some may not be familiar with moissanite at all.

If you are shopping for a piece of jewelry and are unsure whether it contains moissanite or diamond, it is important to ask the jeweler about the stone’s origin and characteristics. A reputable jeweler should be transparent about the materials they are using and should be able to provide documentation to verify the stone’s authenticity.

Ultimately, whether you choose moissanite or diamond for your jewelry is a personal choice. Both stones have their own unique qualities and can be beautiful options for any piece of jewelry. Just be sure to do your research and work with a trusted jeweler to ensure that you are getting exactly what you are paying for.

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