Moissanite vs. Cubic Zirconia: Which is the Best Diamond Alternative?

When choosing your perfect engagement ring online, you may be surprised to find that two gemstones look very similar - cubic zirconia and moissanite. Cubic Zirconia and Moissanite are popular diamond alternatives used in jewelry, but how to tell the difference between Moissanite and Cubic Zirconia? Well, you've come to the right place. In this article, you'll learn a comprehensive comparison of cubic zirconia and moissanite. Let's get started!

What You Need to Know about Cubic Zirconia & Moissanite

Cubic Zirconia (CZ for short) is a synthetic gemstone made from zirconium dioxide. It is optically similar to a diamond but is much less expensive. Cubic Zirconia is often used as a diamond simulant due to its brilliance and clarity.  Natural cubic zirconia was first discovered by German mineralogists in 1892. However, it is extremely rare in nature. Most cubic zirconia on the market today is synthetic. The first synthetic cubic zirconia was developed in a laboratory by Russian scientists in 1976.

Moissanite, also lab-created, is significantly harder and has a more intense, colorful sparkle, making it a superior choice for long-lasting brilliance, though it comes at a higher price than cubic zirconia.

Cubic zirconia and moissanite are often compared to diamonds. However, both cubic zirconia and moissanite have many characteristics that differ from diamonds. Cubic Zirconia vs. Moissanite will be the focus of this article.

Related: Moissanite vs Diamond: A Comprehensive Comparison

Key Differences Between Moissanite and Cubic Zirconia

Moissanite vs CZ: Composition and Construction

Cubic Zirconia and Moissanite are both lab-created gemstones, but they are composed of different chemical substances. These different compositions cause their physical and optical properties to vary.

Naturally occurring moissanite is incredibly rare, found in trace amounts in meteorite craters. Therefore, virtually all moissanite used in jewelry is created in a laboratory. Its production involves advanced technology to replicate the natural conditions under which it forms, resulting in a durable and brilliant gemstone with a hardness of 9.25 on the Mohs scale.

Cubic Zirconia is manufactured from zirconium dioxide (ZrO2) in a controlled laboratory environment. The manufacturing process involves melting zirconia powder along with stabilizers at very high temperatures. This "skull melt" process results in the formation of cubic zirconia crystals, which are then cut and polished for use in jewelry. Because it is a much simpler process, cubic zirconia can be produced at a much lower cost.

Moissanite vs CZ: Origins and History

Moissanite was first discovered in 1893 by French scientist Henri Moissan in a meteor crater in Arizona. He initially mistook them for diamonds. Later analysis revealed that it was a distinct mineral, which was subsequently named moissanite in his honor. Natural moissanite is extremely rare on Earth, so nearly all moissanite used in jewelry today is lab-created. This production became commercially viable in the late 20th century.

Cubic Zirconia (CZ) was first synthesized by German mineralogists in 1937, but it wasn't until the 1970s that it became commercially viable for jewelry production. CZ is made from zirconium dioxide (ZrO2) and is entirely lab-created, with no natural counterpart. Its affordability and diamond-like appearance quickly made it a popular choice for fashion jewelry and a budget-friendly alternative to diamonds.

Unlike moissanite, CZ has no natural history, but its widespread availability and low cost have cemented its place in the jewelry market.

Moissanite vs CZ: Hardness and Durability

Moissanite has a hardness of 9.25 on the Mohs scale. This places it very close to diamonds, which have a rating of 10. Its high hardness provides excellent scratch resistance and durability, making it ideal for everyday wear, especially in engagement rings. Cubic zirconia ranges from 8 to 8.5 on the Mohs scale. While still relatively hard, it's significantly softer than moissanite. This means that CZ is more susceptible to scratches and abrasions over time. CZ can also become cloudy over time due to surface damage.

Moissanite vs CZ: Color and Appearance

Moissanite is usually colorless or nearly colorless, but may have a slight yellow or greenish tint under certain lighting conditions. High quality moissanite is often comparable to a G-H color grade diamond.

Cubic Zirconia, on the other hand, is usually completely colorless, mimicking a D-grade diamond. While it has brilliance, it lacks the same level of "fire" as Moissanite. Its sparkle is more of a white light reflection. Over time, CZ can become cloudy or lose its luster due to surface scratches and wear.

Moissanite vs CZ: Brilliance and Sparkle

CZ has a refractive index of approximately 2.15-2.18 and moissanite has a higher refractive index of approximately 2.65-2.69. Moissanite has a higher refractive index than cubic zirconia, which means it has a greater ability to bend and reflect light. This results in moissanite having a more intense and vibrant sparkle than cubic zirconia and diamonds, often creating a dazzling appearance. If you prefer more sparkle and brilliance, a moissanite engagement ring is a good choice. Conversely, if you prefer a softer sparkle, a cubic zirconia engagement ring is another good choice.

Moissanite vs CZ: Clarity and Inclusions

CZ is known for its high clarity. As a lab-created gemstone, it is typically free from inclusions or blemishes, resulting in a very clear and pristine appearance. Moissanite is also manufactured to high standards, but it may have some minor inclusions that are usually not visible to the naked eye. Therefore, cubic zirconia has a higher clarity level compared to moissanite and is often used as a diamond simulant. However, both cubic zirconia and moissanite offer excellent clarity, but CZ is often considered more pristine in appearance.

Moissanite vs CZ: Price and Affordability

Moissanite is generally more expensive than cubic zirconia. While it is still more affordable than natural diamonds, moissanite's price is higher due to factors such as its rarity, hardness, and diamond-like properties. Cubic Zirconia is much more affordable than both diamonds and moissanite, making it one of the most budget-friendly options for gemstone jewelry. The low cost of cubic zirconia makes it a popular and budget-friendly choice for those who want a diamond-like appearance without the high price tag. Moissanite, while more expensive than CZ, offers better brilliance, fire, and durability, making it a great value for those looking for a high-quality alternative to diamonds.

Similarities between Cubic Zirconia and Moissanite

Ethical Consideration

Both cubic zirconia and moissanite are lab-created gemstones. They are generally more sustainable than the mining of natural gemstones. As such, they are free from the ethical concerns associated with conflict diamonds (also known as blood diamonds). Cubic Zirconia and Moissanite share similar ethical benefits. This makes them excellent choices for those who prioritize sustainability and ethical sourcing in their jewelry purchases.

Usage and Versatility

Both CZ and moissanite are popular choices as diamond alternatives in jewelry. They are widely used in various types of jewelry, including rings, earrings, necklaces, bracelets, and pendants. They are frequently incorporated into trendy and fashion-forward designs, allowing individuals to stay stylish without breaking the bank.

Which is Better: Moissanite or Cubic Zirconia?

When comparing moissanite and cubic zirconia (CZ), the "better" choice depends on your priorities, budget, and intended use. Here's a summary of key points to help you decide:

• Choose Moissanite if you want a durable, brilliant, and long-lasting gemstone that closely mimics the qualities of a diamond. It's ideal for engagement rings or heirloom pieces.
• Choose CZ when you're looking for an affordable, temporary or fashion jewelry option. It's great for occasional wear or those on a budget.

Conclusion

After reading this article, you may have a basic understanding of the comparison of moissanite vs cubic zirconia. Juyoyo is a safe and professional place to find your ideal engagement ring if you are considering moissanite engagement rings or cubic zirconia engagement rings!

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Moissanite and Cubic Zirconia FAQs

Is Moissanite Cubic Zirconia?

No, Moissanite and Cubic Zirconia are different gemstones. Moissanite is made from silicon carbide (SiC), while cubic zirconia is made from zirconium dioxide (ZrO2). They have different properties and appearances.

Is Moissanite Better than Cubic Zirconia?

Yes, Moissanite is generally superior to Cubic Zirconia (CZ). It is more durable (9.25 vs. 8-8.5 on the Mohs scale), has superior luster and sparkle, and retains its appearance over time. While CZ is more affordable, moissanite offers better long-term value and is a closer diamond alternative.

Does Moissanite Get Cloudy like Zirconia?

No, Moissanite does not cloud like Cubic Zirconia (CZ). Moissanite is highly durable and retains its brilliance over time, while CZ can become cloudy or scratched with wear.