Moissanite vs Cubic Zirconia: A Comprehensive Comparison

August 04, 2023
Moissanite vs Cubic zirconia

When it comes to choosing the perfect gemstone for your jewelry, moissanite and cubic zirconia are two popular options that offer an alternative to traditional diamonds. Both are often used as diamond simulants, providing a similar sparkle and brilliance at a fraction of the cost. In this article, we'll dive into the world of moissanite vs cubic zirconia, exploring their properties, differences, and considerations to help you make an informed decision for your jewelry needs.

Understanding Moissanite

Moissanite is a naturally occurring mineral, though the moissanite used in jewelry is usually lab created due to its scarcity in nature. Its exceptional brilliance and fire make it an attractive choice for engagement rings and other jewelry pieces. Moissanite's chemical composition of silicon carbide (SiC) contributes to its remarkable durability, ranking just below diamonds on the Mohs scale of hardness.

Exploring Cubic Zirconia

Cubic zirconia, on the other hand, is a synthetic material made from zirconium dioxide. Its visual similarity to diamonds has led to its widespread use in jewelry since the 1970s. While cubic zirconia lacks the hardness of moissanite, it still ranks relatively high on the hardness scale. However, it may be more prone to scratching and damage over time compared to moissanite.

Moissanite vs Cubic Zirconia

Aspect Moissanite Cubic Zirconia
Origin and Composition Lab-created silicon carbide with exceptional brilliance and fire. Lab-created zirconium dioxide, visually similar to diamonds.
Brilliance Higher refractive index for more fire and sparkle. Impressive brilliance but can sometimes appear slightly artificial.
Hardness and Durability Mohs scale rating of 9.25, highly resistant to scratching. Mohs scale rating of around 8.5, durable but more susceptible to scratches.
Color and Clarity Nearly colorless, slight green/yellow undertone in certain lighting. Often colorless, may exhibit rainbow effect in larger sizes.
Price More expensive due to closer diamond resemblance. More affordable option, suitable for budget-conscious shoppers.
Ethical and Environmental Lab-created, environmentally friendly option. Lab-created, lower ecological impact than mined gemstones.
Longevity and Maintenance Maintains sparkle over time, minimal maintenance required. Might require more frequent replacement due to lower durability.
Resale Value Limited resale value, purchased for aesthetic appeal. Similar limited resale value, primarily purchased for appearance.
Usage Ideal for engagement rings and special occasions. Popular for fashion jewelry and temporary pieces.
Popularity and Acceptance Gained popularity for brilliance and ethical aspects. Widely used but might lack prestige due to lower durability.
Expert Opinions Recommended for durability, brilliance, and ethics. Admired for affordability but might have lower durability.
Setting Options Various settings and designs available. Wide array of settings, allowing for customization.
Making Your Choice Preferred for authenticity and durability. Affordability might outweigh slight compromises in brilliance and durability.
Conclusion Superior brilliance and durability. Affordable option with its own merits.

In the Moissanite vs Cubic Zirconia comparison, both gemstones offer attractive alternatives to traditional diamonds. Moissanite excels in brilliance and durability, while cubic zirconia provides an affordable option. Your choice depends on your priorities, style, budget, and values.

 The Brilliance Battle

One of the key factors in comparing moissanite vs cubic zirconia is brilliance. Brilliance refers to the gemstone's ability to reflect white light, creating that sought-after sparkle. Moissanite's refractive index is higher than that of cubic zirconia, leading to a greater dispersion of light and a more colorful play of fire. This gives moissanite a slight edge in terms of brilliance and fire when compared to cubic zirconia.

Durability and Hardness

Durability is a crucial consideration when choosing a gemstone for everyday wear. Moissanite's exceptional hardness makes it a durable option that can withstand the rigors of daily life. Cubic zirconia, while durable in its own right, may be more susceptible to wear and tear over time. Choosing moissanite for rings and other frequently worn jewelry pieces might be a more prudent choice if long-term durability is a priority.

Moissanite: On the Mohs scale of hardness, moissanite scores a 9.25, making it one of the hardest gemstones available for jewelry. This makes it highly resistant to scratching and suitable for everyday wear.

Cubic Zirconia: With a hardness rating of around 8.5 on the Mohs scale, cubic zirconia is softer than moissanite. While it's still durable, it's more susceptible to scratches over time, particularly with daily use.

Color and Clarity

In terms of color, both moissanite and cubic zirconia offer options that range from completely colorless to various shades. Moissanite tends to exhibit less color than cubic zirconia, which can be especially noticeable in larger stones. When it comes to clarity, both gemstones can be relatively free of inclusions, enhancing their overall appearance.

Cost Comparison

One of the significant advantages of moissanite and cubic zirconia is their affordability compared to natural diamonds. However, moissanite is generally more expensive than cubic zirconia due to its rarity and closer resemblance to diamonds. While both gemstones offer cost-effective alternatives to diamonds, moissanite's higher price point might be justified for those seeking a more authentic look and superior durability.

Environmental Considerations

For environmentally conscious consumers, moissanite might hold a slight edge. Lab-created moissanite is generally considered more eco-friendly compared to the energy-intensive processes involved in producing cubic zirconia. Choosing moissanite over cubic zirconia could align better with sustainable values.

Setting Options

Moissanite: Moissanite's popularity has led to a variety of setting options and designs available, allowing for customization.

Cubic Zirconia: Similarly, cubic zirconia's affordability has led to a wide array of setting choices, providing ample opportunities for personalization.

Popularity and Acceptance

Moissanite: Over the years, moissanite has gained popularity for its unique brilliance and ethical aspects. It's well-accepted as a diamond alternative.

Cubic Zirconia: While cubic zirconia has been widely used for decades, it might not carry the same prestige as moissanite due to its lower durability.

Occasions and Usage

Moissanite: Moissanite's close resemblance to diamonds makes it an ideal choice for engagement rings and special occasions where a diamond-like look is desired.

Cubic Zirconia: Cubic zirconia is a popular option for fashion jewelry and temporary pieces, given its affordability and vibrant sparkle.

Expert Opinions and Recommendations

Moissanite: Many jewelers and experts recommend moissanite for its durability, brilliance, and ethical considerations.

Cubic Zirconia: While cubic zirconia is admired for its affordability, it might not receive the same level of recommendation due to its slightly lower durability.

Making Your Choice

Ultimately, the choice between moissanite vs cubic zirconia boils down to personal preferences and priorities. If you're looking for a gemstone with superior brilliance, durability, and a closer resemblance to diamonds, moissanite might be your preferred choice, despite the higher cost. On the other hand, if budget is a primary concern and you're willing to compromise slightly on brilliance and durability, cubic zirconia could be the right option for you.



In the moissanite vs cubic zirconia debate, both gemstones offer alluring alternatives to traditional diamonds. While moissanite boasts exceptional brilliance and durability, cubic zirconia provides an affordable option with its own set of merits. Whether you're seeking a glamorous engagement ring or a dazzling pendant, understanding the unique properties and differences between these two gemstones will empower you to make a choice that aligns with your style, budget, and values.

About The Author

Author's Name

Monika Lukacova

A professional jewelry designer known for her beautiful creations that blend elegance and innovation. With a passion for crafting unique and timeless pieces, she has established herself as a prominent figure in the world of jewelry design.




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