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Moissanite vs Diamond Side by Side: A Comprehensive Comparison

Moissanite vs Diamond Side by Side
When it comes to choosing the perfect gemstone for an engagement ring, wedding band, or a piece of fine jewelry, the decision often comes down to moissanite and diamond. Here our comparison guide: Moissanite vs Diamond

When it comes to choosing the perfect gemstone for an engagement ring, wedding band, or a piece of fine jewelry, the decision often comes down to moissanite and diamond. Both of these gemstones are renowned for their incredible sparkle and striking beauty. However, they have some key differences that make them stand apart. By examining moissanite and diamond side by side, buyers can make a more informed decision when selecting the gemstone that best suits their needs and preferences.

Moissanite is a rare mineral that was originally discovered in 1893 and is now predominantly available as a synthetic gemstone. It is known for its exceptional brilliance, fire, and durability, making it a popular alternative to diamonds. Being a lab-created gemstone, moissanite offers an affordable and ethically-sourced option for those who are conscious of their budget and the impact of their choices on the environment. It is important to note that, although moissanite has the reflectivity of diamond, it is not a diamond simulant, and has its own unique characteristics.

On the other hand, diamonds have long been considered the epitome of luxury and prestige, symbolizing eternal love and commitment. They are composed of pure carbon and are the hardest known natural substance on Earth, making them remarkably durable and resilient. Diamonds come in a variety of shapes, sizes, and colors, allowing for a highly customizable and personal selection. However, they can be significantly more expensive than moissanite and may present ethical concerns related to their sourcing and environmental impact.

Understanding Moissanite and Diamond


Moissanite for an engagement ring

What is Moissanite

Moissanite, also known as silicon carbide, is a rare, naturally occurring mineral discovered by French chemist Henri Moissan in 1893. It was later synthesized in a lab and has become popular as an alternative to diamonds in jewelry. Lab-made moissanite is produced by companies like Charles and Colvard, making it an affordable and environment-friendly choice in the market.

Natural moissanite is extremely rare, and most of the moissanite found today is created through controlled processes. Moissanite is known for its brilliance, and its refractive index is higher than that of a diamond, giving it a more intense sparkle. The hardness of moissanite measures 9.25 on the Mohs scale, making it a durable option for daily wear.

Diamond for an engagement ring

What is Diamond

Diamond, one of the most sought-after and valuable gemstones, is a naturally occurring allotrope of carbon, formed under extreme heat and pressure deep within the Earth's mantle. Natural diamonds are typically formed over billions of years and brought to the Earth's surface by volcanic eruptions. Today, diamonds are not only found in nature but also made in laboratories through advanced techniques, with lab-made diamonds exhibiting characteristics nearly identical to their natural counterparts.

Natural diamonds are often associated with status and wealth, and their remarkable hardness, with a rating of 10 on the Mohs scale, makes them a popular choice for engagement rings and other jewelry. Diamonds are known for their light-reflecting properties and have a lower refractive index than moissanite, resulting in a distinctively different sparkle.

When comparing moissanite and diamond, it's essential to understand that each gemstone has its unique properties and origins. Moissanite, with its high refractive index and durability, is an affordable and eco-friendly alternative for those seeking a diamond alternative. On the other hand, diamonds, whether natural or lab-made, continue to symbolize luxury and prestige while also providing exceptional durability and light performance.

Moissanite and Diamond Comparison

Physical Characteristics Comparison

Color and Clarity

Diamonds are available in a range of colors, from colorless to yellowish and even slightly brownish hues. They are graded on a D to Z scale, with D being colorless and Z having noticeable color. Colorless and near-colorless diamonds are more valuable than those with a slight color. In terms of clarity, diamonds contain internal inclusions and external blemishes that can affect their appearance and value. The clarity of a diamond is measured on a scale from Flawless (no inclusions or blemishes) to Included (inclusions and blemishes visible under 10x magnification).

On the other hand, moissanite is typically near colorless, with some stones showing a yellow or greenish tint under certain lighting conditions. While not completely colorless like the highest-quality diamonds, moissanite stones still exhibit a beautiful appearance and sparkle. Moissanite has fewer inclusions than most diamonds due to its synthetic nature, resulting in a clearer stone overall.

Cut and Size

Both diamonds and moissanite can be cut into various shapes, including popular cuts like the brilliant cut and the oval cut. The cut of a gemstone determines not only its shape, but also its light performance such as brilliance and fire. The cut quality of both diamonds and moissanite has a significant impact on the overall appearance and value of the stone.

In terms of size, diamonds come in a wide range of carat weights, allowing for various size options depending on the preference and budget of the buyer. Moissanite stones are also available in different sizes but are often calibrated in a "diamond equivalent weight" (DEW) system to better compare them to diamonds. This means that a moissanite stone may be described as having a certain carat weight, but its actual weight may be slightly less.

To summarize, both diamonds and moissanite share similarities in their physical characteristics, such as their cut and size options. However, differences in color and clarity, as well as pricing, can influence a buyer's decision on which gemstone suits their personal preferences and budget best.


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Evaluation of Brilliance and Fire

Moissanite and diamond are two popular gemstones often compared due to their similarities in appearance. Although both stones exhibit brilliance, fire, and sparkle, their optical properties do differ. This section will explore the brilliance and fire of both moissanite and diamond in a side-by-side comparison.

Brilliance refers to the amount of light that enters a gemstone and is reflected back to the observer's eye. For both moissanite and diamond, their brilliance can be attributed to their respective high refractive indices: moissanite has a refractive index of 2.65, while diamond's is 2.42. Given their similar refractive properties, both gems can exhibit remarkable brilliance in proper lighting conditions.

On the other hand, fire is a measure of a gemstone's ability to separate white light into spectral colors, resulting in a dazzling, rainbow-like effect. As a synthetic gemstone, moissanite exhibits a higher dispersion rate at 0.104, compared to natural diamond's rate of 0.044. Consequently, moissanite tends to display more fire, often causing a noticeable rainbow effect when viewed under light.

When considering scintillation, or the pattern of light and dark areas created by a gemstone's facets, both moissanite and diamond achieve their distinctive sparkle due to their well-proportioned facet arrangements. Round brilliant-cut diamonds, for instance, are specifically designed to maximize light performance, resulting in exceptional scintillation. Likewise, moissanite jewelry pieces are often cut to optimize their light performance, resulting in a comparable visual appeal.

In terms of overall light performance, both moissanite and diamond gems can radiate remarkable brilliance, fire, and scintillation that contribute to their bling factor. However, each gem possesses unique optical characteristics that define their appearance and impact on light. Deciding which gemstone is more striking ultimately depends on personal preference, as moissanite often appears more fiery, while diamond exudes a balanced mix of brilliance, fire, and scintillation.

Moissanite vs Diamond in Engagement Rings

Variety in Shapes and Settings

Moissanite and diamond engagement rings both offer a wide variety of shapes and settings to suit individual preferences. Traditional solitaire engagement rings can feature either a moissanite or a diamond as the center stone, and are commonly set in precious metals like rose gold, yellow gold, and platinum.

In addition to the classic solitaire setting, there are numerous custom setting designs available for both moissanite and diamond rings. These designs can range from vintage-inspired to modern and minimalist, with both stones offering a brilliant sparkle and visual appeal.

Durability for Everyday Use

When choosing an engagement ring, durability is a significant factor to consider, as the ring will likely be subject to wear and tear from everyday use. Diamonds are renowned for their hardness, scoring a perfect 10 on the Mohs scale. This makes them highly resistant to scratches and damage, ideal for a ring that's worn daily.

Moissanite, while not as hard as a diamond, is still an impressive 9.25 on the Mohs scale, making it a very durable option for an engagement ring. Although a moissanite ring may be slightly more susceptible to wear and tear than a diamond ring, it's worth noting that both stones are quite resilient and suitable for daily wear.

In summary, when comparing moissanite and diamond engagement rings in terms of variety in shapes, settings, and durability, both options have their merits. Ultimately, the choice between these two beautiful stones will come down to personal preference and budget considerations

Cushion Divine with Half-moon Three Stone White Gold Engagement Ring

Price Comparison of Moissanite and Diamond

When it comes to choosing between moissanite and diamond for an engagement ring or jewelry, price is often a significant consideration. For those on a budget or looking for more affordable options, moissanite can be an appealing choice.

Moissanite is generally less expensive than diamonds. This is due to the fact that moissanite is a lab-created gemstone, whereas diamonds are usually found in nature. Additionally, the manufacturing processes for creating moissanite are more efficient and cost-effective, which further lowers the price of these stones. As a rough estimate, moissanite can cost anywhere between $200-$800 per carat, depending on the size and quality of the gemstone.

On the other hand, diamonds can vary greatly in price depending on factors such as carat size, cut, clarity, and color. For example, a one-carat diamond can cost anywhere from $1,500 to over $20,000, with the average being around $5,000. The wide range in diamond pricing is largely due to the rarity and quality of the stone, which can fluctuate depending on market demand and the availability of high-quality stones.

One key aspect to consider when comparing the affordability of moissanite and diamond is the size and quality of the stones within your budget. Since moissanite is more affordable, you may be able to purchase a larger or higher quality stone for the same price as a smaller or lower quality diamond. This means that if size and brilliance are high on your priority list, moissanite might be the better option.

However, it is important to note that while moissanite may offer a more budget-friendly option, diamonds are still considered the traditional choice for engagement rings and often hold a higher resale value. This is not to say that moissanite does not have its own merits; its affordability, durability, and striking resemblance to diamonds make it a popular alternative for many consumers.

In summary, deciding between moissanite and diamond comes down to personal preference, budget constraints, and an understanding of the pricing structures for both gemstones. While moissanite offers a more affordable option for consumers looking for sparkle and size, diamonds continue to hold their position as the classic and timeless choice for engagement rings and fine jewelry.

Hardness and Durability

When comparing moissanite and diamond, one key factor to consider is their hardness and durability. Hardness is a measure of a material's resistance to scratching or abrasion, while durability refers to its ability to withstand everyday wear and tear. Both of these characteristics play a significant role in determining the longevity and overall quality of a gemstone.

Moissanite ranks 9.25 on the Mohs scale of hardness and, while it is not as hard as diamond, it is still considered one of the hardest gemstones available. Diamonds, on the other hand, are the hardest substance on the Mohs scale, with a ranking of 10. This difference makes diamonds slightly more resistant to scratches and abrasions than moissanite.

Although diamonds possess a higher ranking on the Mohs hardness scale, moissanite is not far behind and offers impressive durability. Both gemstones can withstand daily wear and tear, making them suitable for a variety of jewelry types, from engagement rings to everyday accessories.

In terms of yield strength, diamonds have a significantly higher yield strength compared to moissanite, which contributes to diamonds' overall exceptional durability. For example, diamonds have a yield strength of over 16 GPa, whereas moissanite has a yield strength of 9 GPa.

In conclusion, both moissanite and diamond offer impressive hardness and durability, making them suitable for use in jewelry. While diamonds are harder and more durable, moissanite offers a similar level of resistance to scratches and everyday wear, making it a more affordable alternative to consider.

Moissanite vs Cubic Zirconia

Alternative Gemstone Options

When considering diamond alternatives, two popular options stand out: moissanite and cubic zirconia. Both of these gemstones offer unique characteristics that make them desirable options for those looking for an alternative to traditional diamonds.

  • Moissanite is a lab-created gemstone that is similar in appearance to diamonds. However, it offers better durability, being slightly harder than sapphires and emeralds, and has greater heat resistance than diamonds. Moissanite is often compared to diamonds in terms of brilliance and fire, although it has a slightly different refractive index, making it exhibit a unique sparkle. With these properties, moissanite has become a popular diamond alternative, especially for engagement rings and other fine jewelry.
  • Cubic Zirconia is another widely-used diamond substitute. It is a lab-grown crystal that closely resembles a diamond in appearance but is more affordable. Although cubic zirconia is not as durable as moissanite or diamonds, it is still an excellent choice for those seeking an affordable, yet attractive, alternative.

Among natural gemstones, sapphires, emeralds, and white sapphire are viable options for those who prefer traditional stones. Sapphires and emeralds are revered for their vibrant colors and are often used in engagement rings and other fine jewelry. Sapphires come in a variety of colors, including the sought-after blue and pink, while emeralds are known for their lush green hues.

White sapphire is a colorless variety of sapphire that resembles a diamond, which makes it an attractive alternative for those who prefer a more gem-like appearance. Although white sapphires might not have the same brilliance and fire as diamonds, they still offer a beautiful and durable choice for jewelry pieces.

In summary, when comparing moissanite vs diamond, several other alternative gemstones offer unique advantages that cater to individual preferences and budgets. From lab-created moissanite and cubic zirconia to natural sapphires, emeralds, and white sapphires, the options are plentiful for those seeking an alternative to traditional diamonds.

Ethical and Environmental Considerations

When comparing moissanite and diamond, it is essential to consider the ethical and environmental factors associated with each gemstone. Diamond mining has long been associated with negative environmental impact and ethical concerns. Large-scale mining operations can cause habitat destruction, soil erosion, and water pollution. Furthermore, diamond mining in some parts of the world is linked to conflict and human rights abuses, often referred to as "blood diamonds" or "conflict diamonds."

On the other hand, moissanite is a lab-grown gemstone, with a significantly lower environmental impact. The production process is more energy-efficient and does not contribute to habitat destruction or pollution. Moreover, moissanite is an environmentally friendly alternative to diamonds with an emphasis on sustainability.

The diamond industry has taken steps towards addressing ethical concerns with initiatives like the Kimberley Process, aimed at ensuring diamonds are conflict-free. However, the process has its limitations, as it cannot guarantee complete traceability of a diamond's origin. In contrast, lab-grown moissanite can be traced back to its source and is considered conflict-free.

Moissanite manufacturers also have the opportunity to prioritize responsible and ethical production, such as implementing fair labor practices and adhering to strict environmental standards. This is not always the case with diamond mining, where workers can still face exploitation and unsafe conditions.

In terms of environmental impact, moissanite production's controlled nature ensures that its carbon footprint is minimal compared to diamond mining. Additionally, moissanite consumes less water and produces fewer greenhouse gas emissions, making it a more eco-friendly gemstone.

To make an informed choice between moissanite and diamond, it is crucial for consumers to weigh the ethical and environmental considerations associated with each gemstone. While diamonds have traditionally been favored for their natural brilliance and value, the negative connotations and environmental concerns surrounding diamond mining cannot be ignored. On the other hand, moissanite offers a sustainable, conflict-free alternative that combines beauty with ethical production and minimal environmental impact.

Checking quality of a diamond

Quality and Authenticity Measures

When comparing moissanite and diamond, it is essential to consider the quality and authenticity of these precious stones. Diamonds are known for their natural beauty, durability, and rarity, while moissanite offers affordability and environmentally friendly alternatives.

The quality of diamonds is measured based on the 4 Cs: carat weight, cut, color, and clarity. In contrast, moissanite quality is determined by its carat weight, cut, and clarity grade. Both diamonds and moissanites can be found in various cuts such as round, princess, emerald, and more. A well-crafted cut ensures maximum sparkle and brilliance. In terms of color, moissanite can come as colorless or with a slightly yellowish tint, while natural diamonds range from colorless to slightly yellow or brown hues.

To identify authentic diamonds from fake or simulated diamonds like moissanite, certain tools and techniques are commonly used. Jewelers and gemologists often use a loupe, a magnifying tool, to inspect the stone up-close for any inclusions or defects. Diamonds have a unique refractive index and specific gravity that distinguish them from moissanites or other diamond simulants.

Lab-grown diamonds are a modern alternative to mined diamonds. These diamonds have the same chemical composition, crystal structure, and physical properties as natural diamonds. Lab-grown diamonds are usually less expensive and more environmentally friendly, making them appealing to many consumers.

Nevertheless, it is crucial for buyers to be aware that some sellers might intentionally or unintentionally market lab-grown diamonds or diamond simulants such as moissanite or cubic zirconia as natural diamonds. Accurate labeling and certification from reputable institutions like GIA (Gemological Institute of America) or AGS (American Gem Society) can provide assurance of a gemstone's authenticity and quality.

In conclusion, understanding and evaluating the quality and authenticity measures for both moissanite and diamond will help buyers make informed decisions when selecting their desired gemstone or piece of jewelry. Overall, both diamond and moissanite have their unique qualities, with diamonds being highly prized for their natural beauty and rarity, and moissanite offering a more budget-friendly and eco-conscious option.


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Deciding Between Moissanite and Diamond

When choosing between moissanite and diamond, it is essential to consider their similarities and differences in terms of beauty, price, durability, and environmental impact. Both moissanite and diamond gemstones boast impressive qualities, making them popular options for engagement rings and other jewelry pieces.

Moissanite gemstones are known for their brilliance and sparkle. They possess a higher refractive index than diamonds, resulting in a more fiery light display. If you are looking for a stone with exceptional brilliance, a moissanite gem might be the right choice for you. Moissanite comes in various cuts, such as brilliant cut, oval moissanite, cushion moissanite, and round moissanite, offering plenty of options to suit individual preferences.

In terms of durability, both moissanite and diamond are suitable for everyday wear. Diamonds are the hardest known natural substance, scoring a perfect 10 on the Mohs scale. Moissanite, on the other hand, scores a notable 9.25, making it one of the hardest gemstones available. This means that both stones are resistant to scratches and can withstand daily wear and tear.

One significant advantage of moissanite over diamond is its affordability. Moissanite gemstones are typically less expensive than their diamond counterparts, making them an attractive option for those on a budget. As moissanite is a lab-created gemstone, its price does not increase with size as rapidly as natural diamonds. This allows buyers to choose a larger, high-quality moissanite stone for a fraction of the cost of a comparable diamond.

Environmental and ethical considerations also play a role in the decision-making process. Many consumers are concerned about the environmental and social implications of diamond mining, such as habitat destruction and potential for conflict. Moissanite, being lab-created, eliminates these concerns, as its production process does not involve harmful mining practices.

In conclusion, the choice between moissanite and diamond ultimately depends on personal preferences, budget, and ethical considerations. Both stones possess remarkable beauty and durability, making them suitable for a variety of jewelry pieces. As you weigh these factors, you can confidently select a stunning gemstone to cherish for years to come.

Frequently Asked Questions

What is the difference in hardness between moissanite and diamond?

Moissanite and diamond are two of the hardest materials known. Diamond, being a 10 on the Mohs scale, is the hardest natural material. Moissanite comes very close, ranking at 9.25, which makes it more durable than many other gemstones. The higher the number on the Mohs scale, the better a material resists scratching and wear.

How does moissanite compare to lab-grown diamonds?

Both moissanite and lab-grown diamonds are popular options for jewelry due to their striking resemblance to natural diamonds. However, there are some differences between the two. Moissanite, a silicon carbide, is a near-colorless gemstone with a refractive index slightly higher than that of diamond, giving it more brilliance and fire. Lab-grown diamonds, on the other hand, are chemically and optically identical to natural diamonds, but with a potentially smaller environmental impact and a more affordable price. The choice between the two often depends on personal preference and budget.

Is moissanite pawnable like a diamond?

While moissanite is less expensive than natural or lab-grown diamonds, it is still a valuable gemstone in its own right. Due to its beauty and durability, some pawnshops may indeed accept moissanite as collateral or purchase it outright, although the resale value will likely be lower than that of a diamond.

Which has more sparkle: moissanite or diamond?

Moissanite is known for its remarkable fire and sparkle, which are often described as more intense than diamond. This is due to moissanite's higher refractive index, which causes more light to be bent and dispersed, creating its characteristic sparkle. Diamonds, on the other hand, have a slightly lower refractive index, resulting in a more subtle but equally beautiful sparkle.

How does 2-carat moissanite price compare to a 2-carat diamond?

The price of a 2-carat moissanite typically ranges from a few hundred to a couple of thousand dollars, significantly less expensive than a 2-carat diamond, which can range from tens of thousands of dollars, depending on the quality. This price difference makes moissanite an attractive alternative for those seeking an affordable yet beautiful diamond alternative.

Can an average person visually discern moissanite from a diamond?

To the untrained eye, moissanite can be easily mistaken for a diamond due to its near-colorless appearance, brilliance, and fire. However, a skilled gemologist or jeweler using specialized tools, such as a loupe or a moissanite tester, can accurately distinguish moissanite from diamond based on subtle differences in refractive index and other optical properties.

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