When it comes to purchasing an engagement ring or other fine jewelry, it's important to know the differences between the various gemstones that are available. Two popular options for diamond alternatives are moissanite and cubic zirconia. While they may look similar at first glance, there are several key differences to consider before making a decision.

In this blog post, we'll explore the differences between moissanite and cubic zirconia, including their origin, physical properties, and overall value.

Origins of Moissanite and Cubic Zirconia

Moissanite

Moissanite is a naturally occurring mineral that was first discovered in a meteorite crater in Arizona in 1893. It is composed of silicon carbide and has a unique crystal structure that gives it its distinctive appearance. While moissanite is rare in nature, it can now be produced in a lab, making it more accessible and affordable.

Cubic Zirconia

Cubic zirconia, on the other hand, is a synthetic gemstone that was first developed in the 1970s. It is made from zirconium dioxide and is created in a lab using a process called the skull melt method. This method involves melting the raw materials in a crucible using radio frequency induction heating.

Physical Properties

Moissanite

Moissanite is known for its high refractive index, which gives it a fiery sparkle that is often compared to diamonds. It is also extremely hard, ranking 9.25 on the Mohs scale of hardness. This makes it an excellent choice for everyday wear and tear, as it is very durable and resistant to scratches.

Cubic Zirconia

Cubic zirconia, on the other hand, has a lower refractive index than moissanite, which means that it does not have the same level of brilliance or fire. It is also less hard than moissanite, ranking 8 on the Mohs scale of hardness. While it is still a durable gemstone, it is more prone to scratches and damage than moissanite.

Value

Moissanite

Moissanite is often considered to be a high-value diamond alternative, as it is more affordable than natural diamonds while still possessing many of the same physical properties. It is also a rare and unique gemstone, which adds to its overall value and appeal.

Cubic Zirconia

Cubic zirconia, on the other hand, is typically much more affordable than moissanite or diamonds. While it may be a good option for those on a budget, it is important to note that it is not as durable or valuable as moissanite or natural diamonds.

Comparing the features of Moissanite and Cubic Zirconia:

The Atomic differences between Moissanite and Cubic Zirconia

Moissanite and cubic zirconia may look similar at first glance, but they have distinct atomic differences that set them apart. Moissanite is made of silicon carbide, which has a unique crystal structure consisting of silicon and carbon atoms arranged in a hexagonal lattice. On the other hand, cubic zirconia is made of zirconium oxide, with a crystal structure consisting of zirconium and oxygen atoms arranged in a cubic lattice.

One of the most significant differences between moissanite and cubic zirconia is their hardness. Moissanite is one of the hardest minerals on earth, ranking 9.25 on the Mohs scale of mineral hardness, second only to diamonds. Cubic zirconia, on the other hand, has a Mohs hardness rating of around 8-8.5, making it less durable than moissanite.

Another difference is their refractive index, which is a measure of how much light is bent or reflected when it passes through the material. Moissanite has a higher refractive index than cubic zirconia, which means it has more brilliance and fire than cubic zirconia.

Furthermore, moissanite is more heat resistant than cubic zirconia. Moissanite can withstand temperatures of up to 2000 degrees Fahrenheit, while cubic zirconia can only handle temperatures up to 1500 degrees Fahrenheit. This makes moissanite a better choice for jewelry that may be subjected to high heat during repair or cleaning.

In terms of color, moissanite is usually colorless or near-colorless, while cubic zirconia can be produced in a wide range of colors, including pink, yellow, blue, and green. Moissanite also tends to have a higher level of clarity than cubic zirconia, with fewer inclusions or flaws.

Overall, while moissanite and cubic zirconia may appear similar, their atomic differences lead to distinct differences in their physical properties and durability. It's important to consider these differences when choosing between the two for jewelry purposes.

Conclusion

In conclusion, while moissanite and cubic zirconia may appear similar at first glance, there are several key differences to consider when choosing a diamond alternative for your jewelry. Moissanite is a naturally occurring gemstone that is known for its high refractive index, durability, and overall value. Cubic zirconia, on the other hand, is a synthetic gemstone that is less valuable and durable than moissanite or natural diamonds.

Ultimately, the choice between moissanite and cubic zirconia comes down to personal preference and budget. Whether you're looking for a high-value diamond alternative or an affordable option for everyday wear, there is a gemstone out there that will meet your needs and fit your style.