Moissanite and cubic zirconia are popular diamond alternatives that have gained traction in the jewelry market. Both stones offer unique benefits and are ideal options for consumers who seek beautiful and affordable alternatives to natural diamonds. This article will explore the key differences between moissanite and cubic zirconia, focusing on aspects such as appearance, durability, and value.

Moissanite is a gem-quality synthetic material made from silicon carbide. It was first discovered in a meteorite crater in 1893, which has sparked interest in its extraterrestrial origins. Today, moissanite is synthesized in laboratories and offers exceptional brilliance and fire, making it a strikingly beautiful option for jewelry. Its durability, measured by its hardness on the Mohs scale, is also impressive, closely followed by diamonds and surpassing many other gems.

On the other hand, cubic zirconia is a lab-created crystalline form of zirconium dioxide, which has been used as a diamond substitute since the 1970s. While it shares similar optical properties with diamonds, it is less durable in comparison to moissanite. However, it compensates with affordability and a wide range of colored varieties, making it a popular choice for budget-conscious shoppers and those seeking vibrant, colorful jewelry options.

Understanding the Basics: Diamonds, Cubic Zirconia and Moissanite

When comparing gemstones, it is essential to have a fundamental understanding of the properties and characteristics of diamonds, cubic zirconia, and moissanite. These are some of the most popular gemstones used in jewelry, with each offering unique qualities.

  • Diamonds¬†are created under high pressure and temperature deep within the Earth's mantle. These precious stones comprise carbon atoms arranged in a crystal lattice structure, contributing to their remarkable hardness, brilliance, and thermal conductivity. Diamonds are known for their excellent durability and beautiful sparkle, thanks to their high refractive index and optical dispersion. These natural gems are frequently used in engagement and wedding rings, symbolizing love and commitment.
  • Cubic Zirconia¬†is a synthesized gemstone made of zirconium dioxide. They're an affordable alternative to diamonds, with their crystalline structure resembling that of a diamond. However,¬†cubic zirconia¬†is not as hard or durable as diamonds, making it more susceptible to breakage, scratches, and dulling over time. The refractive index and dispersion of cubic zirconia are also lower than those of diamonds, which impacts their overall sparkle. Nonetheless, cubic zirconia is a popular choice in jewelry due to its affordability and appearance.
  • Moissanite¬†is another gemstone often used as an alternative to diamonds. It consists of silicon carbide and was initially discovered in a meteorite's remnants in 1893. Today, moissanite gems are primarily lab-created, making them an ethical and environmentally friendly option. Moissanite has a higher refractive index and greater dispersion compared to diamonds and cubic zirconia, resulting in exceptional brilliance and fire. Additionally, moissanite scores 9.25 on the Mohs hardness scale, making it more durable than cubic zirconia but slightly less durable than diamonds.

In summary, diamonds, cubic zirconia, and moissanite are three popular gemstones with unique properties and characteristics. Diamonds are highly prized for their durability, brilliance, and rarity, while cubic zirconia offers affordability with a diamond-like appearance. Moissanite, on the other hand, provides a durable and incredibly brilliant alternative to both diamonds and cubic zirconia, with lab-created options contributing to its ethical and eco-friendly qualities.

Physical Characteristics

Moissanite and cubic zirconia are both popular diamond alternatives with their own unique physical characteristics. One key aspect to consider when comparing the two gemstones is hardness. Moissanite scores a 9.25 on the Mohs scale, making it incredibly durable and resistant to scratches. On the other hand, cubic zirconia has a lower score of 8 on the Mohs scale, indicating that it is less durable and more prone to damage over time.

In terms of color, moissanite is usually found in a near-colorless to a slightly yellow or gray hue. High-quality moissanite stones can appear almost entirely colorless, while lower-quality stones may exhibit more noticeable yellow or gray tones. Cubic zirconia, however, is typically colorless and may even appear more brilliant than a diamond due to its lack of inclusions.

The sparkle, brilliance, and fire of a gemstone are important factors when comparing moissanite and cubic zirconia. Moissanite is known for its exceptional brilliance, which is even greater than that of a diamond. This is due to its higher refractive index, leading to a stunning display of fire that produces a rainbow of colors when light passes through it. Cubic zirconia also exhibits a high degree of brilliance but has less fire than moissanite, which gives its sparkle a more white or colorless appearance.

Another aspect to consider is clarity. Moissanite is often found with very high clarity, sometimes even appearing flawless to the naked eye. This is because moissanite is a lab-created stone, allowing for excellent control over its production process. Cubic zirconia is also typically clear and free of inclusions, as it is also a lab-created gemstone. Consequently, both moissanite and cubic zirconia offer exceptional clarity and cleanliness.

In summary, moissanite and cubic zirconia both possess unique physical characteristics that may appeal to different preferences. Moissanite has a higher hardness, more fire, and slightly more color variation, while cubic zirconia is typically colorless with less fire and a slightly lower hardness score. Both gemstones boast excellent clarity and a dazzling brilliance.

Comparative Analysis: Moissanite Vs Cubic Zirconia

When selecting a diamond alternative, it is essential to consider the key differences between popular options, such as moissanite and cubic zirconia. Both of these gemstones are widely used as diamond simulants, offering distinct advantages and drawbacks.

Moissanite, a lab-created gemstone originally discovered in meteorites, is known for its durability and brilliance. With a hardness of 9.25 on the Mohs scale, it is remarkably resistant to scratching and daily wear. Its refractive index (2.65-2.69) is higher than that of a diamond, giving it exceptional fire and sparkle. However, this increased fire can sometimes produce a "disco ball" effect, causing it to appear less similar to a real diamond. Despite its stunning appearance, moissanite can be more expensive than cubic zirconia, but it is still more affordable than a diamond.

Cubic zirconia, on the other hand, is a synthesized material that closely resembles a diamond visually. Its hardness is relatively lower at 8.0-8.5 on the Mohs scale, making it less durable and prone to scratches. However, cubic zirconia has a refractive index (2.15-2.18) closer to that of a diamond, giving it a more diamond-like appearance in terms of brilliance. One of its primary advantages is its affordability, as it is significantly less expensive than both diamonds and moissanite.

In terms of color, moissanite typically carries a faint yellow or green hue, whereas high-quality cubic zirconia is often colorless. Both gemstones can be found in various cuts and shapes, providing consumers with a wide range of options for their diamond alternatives.

When comparing these two gemstones in terms of environmental impact, moissanite and cubic zirconia are both eco-friendly choices since they are created in a laboratory rather than mined from the earth. Additionally, both are conflict-free, giving consumers peace of mind that they are making socially responsible choices.

In conclusion, the choice between moissanite and cubic zirconia largely depends on individual preferences and budget constraints. Moissanite offers greater durability and impressive fire, while cubic zirconia provides a more diamond-like appearance at a lower cost. Both gemstones are excellent diamond alternatives, allowing consumers to find the perfect balance between beauty, durability, and affordability.

Economic Factors

When comparing moissanite and cubic zirconia, several economic factors come into play for consumers. These factors include price, cost, budget, value, and finding an affordable alternative to diamonds.

Starting with the price aspect, cubic zirconia is considerably less expensive than moissanite. The low price of cubic zirconia makes it a popular choice among budget-conscious consumers who still desire a visually appealing stone. On the other hand, moissanite stones are priced higher than cubic zirconia, but they still provide a more affordable option compared to natural diamonds.

In terms of cost, moissanite boasts a higher durability and remains virtually unchanged over time, making it a worthwhile investment for many. Cubic zirconia, although budget-friendly, has a lower hardness level and may become scratched or cloudy with prolonged wear. This difference in cost can influence long-term satisfaction and overall value.

Speaking of value, moissanite holds a higher market value than cubic zirconia. Moissanites are often created using advanced technology and are recognized for their brilliance and fire, which can closely resemble that of a diamond. Cubic zirconia, due to their lower price point and tendency to wear, hold little to no value over time1.

As an affordable alternative to diamonds, both moissanite and cubic zirconia fulfill this requirement, but with varying degrees of success. While moissanite offers a more durable and valuable option for those seeking longevity, cubic zirconia remains the more budget-friendly choice for those prioritizing upfront cost.

Overall, when considering the economic factors between moissanite and cubic zirconia, potential buyers must weigh their priorities regarding price, value, and durability. Finding the right balance among these factors will ultimately determine which stone is the best option for an individual's unique needs and preferences.

Manufacturing and Formation

Moissanite is a lab-created gemstone made from silicon carbide, a naturally occurring material found in limited quantities in the earth's crust. The manufacturing process for this synthetic gemstone involves high temperatures and pressure to transform the raw silicon carbide into the sparkling crystal we see in jewelry. Due to its rarity in nature, the lab-created moissanite is the predominant form of this gemstone used in jewelry today source.

Cubic zirconia, on the other hand, is a synthetic gemstone made from zirconium oxide. It is produced through a process called the skull melt method, wherein zirconium oxide powder is heated to an extremely high temperature and forms a melt. The melt is then cooled and the cubic zirconia crystals are formed. These crystals are then cut and polished for use in various types of jewelry source.

Both moissanite and cubic zirconia are popular choices for lab-grown diamond alternatives, offering consumers a more affordable and sustainable option for beautiful gemstones.


  • Composed of silicon carbide
  • Rare in nature, primarily lab-created
  • Requires high temperatures and pressure for manufacturing

Cubic Zirconia

  • Composed of zirconium oxide
  • Synthetic gemstone, not found in nature
  • Formed through the skull melt method

Both moissanite and cubic zirconia have distinct characteristics that set them apart from natural diamonds and each other. Moissanite has a higher refractive index and greater fire than cubic zirconia, giving it a more brilliant sparkle source. Cubic zirconia, however, is more durable and less prone to abrasion than moissanite.

In conclusion, lab-created moissanite and cubic zirconia gemstones provide fantastic alternatives to natural diamonds for those looking for a more affordable and sustainable option. Their unique properties and manufacturing processes make them excellent choices for a variety of jewelry designs and styles.

Appearance and Aesthetic Factors

When comparing moissanite and cubic zirconia as diamond substitutes, there are several appearance and aesthetic factors to consider. Both stones are used in various types of jewelry, such as rings, engagement rings, and are often set in gold, platinum, or silver settings.

Moissanite is known for its strong fire and brilliance, which can be even more intense than natural diamonds. It is a durable, hard material and typically has better clarity than cubic zirconia. However, some people find the intense sparkle of Moissanite to be less desirable for pieces of jewelry with larger stones, as it can make them look less like genuine diamonds.

On the other hand, cubic zirconia offers a more affordable option and closely mimics the appearance of diamonds. The white stone is often used in a variety of shapes, including oval and sapphire shapes. However, cubic zirconia is less resistant to wear and tear and may become dull or scratched over time.

In terms of color, moissanite stones usually have a slight yellow or gray hue in certain light conditions. Cubic zirconia stones are available in a range of colors but are most commonly found in a colorless form, which is preferred for pieces like engagement rings.

It is essential for consumers to consider these appearance and aesthetic factors when choosing between moissanite and cubic zirconia jewelry pieces. Each stone offers its unique qualities, and the choice ultimately depends on personal preferences, budget, and desired style.

Usage and Applicability

Moissanite and cubic zirconia are both popular alternatives to natural gemstones, particularly in jewelry applications. They share some similarities but also have distinct differences in terms of wear, cuts, shapes, and availability.

One of the main reasons people opt for these synthetic gemstones is their affordability compared to diamonds and other natural gemstones. Both moissanite and cubic zirconia are suitable for a variety of jewelry pieces such as earrings, wedding rings, and necklaces. Since they are lab-created, they can be manufactured in various shapes and sizes to fit the desired design.

In terms of wear, moissanite has a higher durability and hardness than cubic zirconia, making it better suited for everyday use. With a hardness of 9.25 on the Mohs scale, moissanite is less prone to scratches and damage compared to cubic zirconia, which has a hardness of 8. This makes moissanite an attractive option for engagement rings or other jewelry pieces that will be worn daily.

Cubic zirconia and moissanite gemstones can be cut into various shapes and styles. Both can mimic the brilliance of a diamond, but moissanite has a higher refractive index, causing it to display more fire and brilliance than cubic zirconia. This quality adds to the appeal of moissanite as an alternative to diamonds.

Availability is another factor to consider when choosing between moissanite and cubic zirconia. Cubic zirconia is more prevalent in the market and more affordable as a result. Moissanite, while growing in popularity, can be harder to find and more expensive in comparison. However, moissanite's higher price point often reflects its superior durability and the extra fire it exhibits.

In summary, both moissanite and cubic zirconia offer versatile options for various jewelry applications, including the popular earrings and wedding rings. Choosing between the two will depend on factors such as hardness, fire, and availability. While cubic zirconia is more affordable and widely available, moissanite's durability and brilliance make it an attractive option for those seeking an alternative to natural gemstones with a more striking appearance.

Understanding Quality, Durability, and Longevity

When comparing moissanite and cubic zirconia, it is essential to consider their quality, durability, and longevity. These attributes play a significant role in determining which gemstone is a better option for various uses, such as in jewelry or as a replacement for mined diamonds.

Moissanite is known for its high quality and durability. Being a lab-created gemstone, it has fewer inclusions or imperfections compared to mined diamonds. Additionally, moissanite has a high refractive index, which gives it exceptional brilliance and fire. With a hardness of 9.25 on the Mohs scale, moissanite is resistant to scratches and is quite tough. This hardness prevents it from easily chipping, breaking, or showing signs of wear over time.

On the other hand, cubic zirconia, a popular diamond simulant, also has impressive optical properties and generally fewer inclusions than mined diamonds. However, it is not as durable as moissanite. With a hardness of 8 to 8.5 on the Mohs scale, cubic zirconia is more prone to scratching, as it is softer than both moissanite and mined diamonds. As a result, it may require more care in terms of upkeep and cleaning to maintain its appearance.

When considering their reaction to dirt, moissanite and cubic zirconia are quite different. Moissanite, being a less porous material, does not easily accumulate dirt or grime. This quality allows it to maintain its brilliance and sparkle over time without frequent cleanings. Cubic zirconia, however, tends to lose its luster due to its oil-attracting surface, which can make the gemstone appear dull. Thus, cubic zirconia may require more frequent cleaning to retain its beauty.

In terms of longevity and resistance to wear, moissanite outperforms cubic zirconia. Due to moissanite's hardness, it is less likely to chip or break when exposed to daily wear and tear or under pressure. While cubic zirconia is a more affordable option, its susceptibility to scratches and dullness can affect the gemstone's lifespan, thus making moissanite a more worthwhile and cost-effective investment over time.

To summarize, when evaluating the quality, durability, and longevity of moissanite and cubic zirconia, it is evident that moissanite has a clear advantage due to its hardness, brilliance, and resistance to wear. While cubic zirconia can serve as a beautiful and budget-friendly diamond alternative, its susceptibility to scratches and tarnishing may affect its overall lifespan in comparison to moissanite.

Optical Characteristics

Moissanite and cubic zirconia are popular diamond alternatives in the world of gemstones due to their striking optical properties. Both of these synthetic materials offer stunning visual effects at a fraction of the cost of natural diamonds.

The refractive index of a gemstone is a measure of how much it bends light. Moissanite boasts a high refractive index of 2.65 to 2.69, making it incredibly brilliant and eye-catching. In comparison, cubic zirconia has a refractive index of around 2.17, which is also quite impressive, but slightly lower than moissanite. This difference in refractive index contributes to the distinct fire and sparkle of the two gemstones.

Dispersion plays a significant role in determining the fire of a gemstone, which is the flashes of color, especially rainbow colors, seen when the stone is moved in light. Moissanite exhibits a higher dispersion value (0.104) than cubic zirconia (0.058-0.066). As a result, moissanite tends to display more intense flashes of color, commonly known as the "disco ball" effect.

The sparkle of a gemstone is often what captures the eye of an observer. Due to its higher refractive index and dispersion, moissanite frequently outshines cubic zirconia in terms of sparkle. However, some people find the enhanced sparkle of moissanite to be excessive and prefer the more subdued sparkle of cubic zirconia.

One notable feature of moissanite is its double refraction also known as birefringence. This means that when light passes through the gemstone, it is split into two rays, creating a unique optical effect. Although this characteristic can sometimes make moissanite appear less sharp or slightly blurry, it also contributes to its distinctive brilliance. Cubic zirconia, on the other hand, is singly refractive, resulting in a more consistent and clear image.

In summary, both moissanite and cubic zirconia offer their own unique set of optical properties that appeal to different tastes. While moissanite's higher refractive index, dispersion, and double refraction provide it with remarkable fire and sparkle, cubic zirconia offers a more subtle beauty and clear image. Ultimately, the choice between these two gemstones depends on personal preference and the desired aesthetic.

Further Considerations: Pros and Cons

When comparing moissanite and cubic zirconia, it's important to consider their similarities and differences to better understand the pros and cons of each gemstone. Both moissanite and cubic zirconia are man-made alternatives to real diamonds, providing a more affordable option for consumers interested in the appearance of a diamond without the price tag.

Moissanite boasts a higher hardness rating than cubic zirconia, which means it is more resistant to scratches and wears better over time. It has a hardness rating of 9.25 on the Mohs scale, making it one of the hardest materials known to man. In addition, moissanite is a better thermal insulator, making it less likely to be damaged by heat during the jewelry making process or when being worn.

The brilliance and fire of moissanite are comparable to that of natural diamonds, giving it a stunning appearance that is difficult to differentiate from the real thing without the help of professional equipment. Its high refractive index and superior sparkle make moissanite a popular choice for engagement rings and other jewelry.

However, one of the characteristics that can be considered a drawback is the slight yellow or green tint moissanite can sometimes present, especially in larger stones. Some may find this a charming quality, while others may prefer a more colorless stone.

Cubic zirconia, on the other hand, is known for its incredibly close resemblance to diamonds in terms of color and clarity, thanks to its isometric crystalline structure. It is routinely used as a diamond imitation in jewelry, and some may argue it looks more like a real diamond than moissanite because of its lack of color. But cubic zirconia has a lower hardness rating (8 on the Mohs scale), making it more prone to scratches and damage over time.

One advantage of cubic zirconia is its affordability. Due to its significantly lower price compared to moissanite, it has become a popular option for various types of jewelry, including large statement pieces and everyday wear.

Both moissanite and cubic zirconia have their pros and cons, and the choice ultimately depends on the buyer's preferences and priorities. To see these two stones in action, videos comparing them side by side can be helpful for those weighing the options. With a clear understanding of each stone's characteristics and what matters the most in terms of budget, durability, and appearance, consumers can make an informed decision when selecting between these two popular diamond alternatives


Moissanite and cubic zirconia are both desirable diamond alternatives, each with their own unique properties and characteristics. When it comes to durability, moissanite is the superior choice, as it is second only to diamond on the Mohs scale of hardness. Cubic zirconia, while still a durable option, is comparatively softer and more prone to scratches and abrasions over time.

In terms of brilliance and fire, moissanite outshines cubic zirconia. With a higher refractive index than cubic zirconia, moissanite is more likely to catch the eye with its dazzling light reflections. Cubic zirconia, on the other hand, has a lower refractive index, resulting in less brilliance and fire.

Price-wise, cubic zirconia is the more affordable option. It is widely available and relatively inexpensive, making it a popular choice for those on a budget. Moissanite, while more expensive than cubic zirconia, is still considerably more affordable than a diamond of the same size and quality.

In the end, the choice between moissanite vs cubic zirconia will depend on individual preferences and budget constraints. Those searching for a durable, brilliant, and more diamond-like option may lean towards moissanite, while those seeking an affordable and readily available alternative may find cubic zirconia to be the better choice.