Is moissanite a lab grown diamond

Written by: Hagai Bichman



Time to read 27 min

Unveiling the Distinction: is moissanite a lab grown diamond

In the world of gemstones, moissanite and lab grown diamonds have emerged as popular alternatives to natural diamonds. While both offer ethical and cost-effective options for jewelry enthusiasts, they are distinct in their composition, origin, and characteristics.

This article delves into the key differences between moissanite and lab grown diamonds, helping you make an informed decision for your next lab grown diamond jewelry purchase.

What is the difference between moissanite and cvd lab grown diamonds

Origin and Composition

Moissanite was first discovered in 1893 by French scientist Henri Moissan in a meteor crater. Natural moissanite is extremely rare, so the stones used in jewelry are almost exclusively lab-created. Moissanite is composed of silicon carbide, giving it unique properties that distinguish it from diamonds.

Lab grown diamonds , on the other hand, are chemically, physically, and optically identical to natural diamonds. They are created in controlled laboratory environments using advanced technological processes that replicate the conditions under which natural diamonds form in the Earth.

Hardness and Durability

On the Mohs scale of mineral hardness, diamonds (both natural and lab grown) rank supreme at 10. Moissanite comes close, with a hardness of 9.25. This makes both stones extremely durable and resistant to scratching, suitable for everyday wear in jewelry.

Brilliance and Fire

One of the most noticeable differences between moissanite and lab grown diamonds lies in their optical properties. Moissanite has a higher refractive index than diamonds, which means it exhibits more brilliance (white light reflection) and fire (colored light dispersion). Some people prefer this extra sparkle, while others find it less desirable if they're seeking a stone that mimics a natural diamond.

Color and Clarity

Lab grown diamonds are available in the same range of colors and clarities as natural diamonds, from colorless to fancy colored, and from flawless to included. Moissanite, however, typically appears colorless but can have a slight yellow, gray, or green tint, especially in larger stones. High-quality moissanite is generally very clean, with few visible inclusions.

Price Point

One of the most significant differences between moissanite and lab grown diamonds is the price. Moissanite is considerably less expensive than both natural and lab grown diamonds of comparable size and quality. This makes it an attractive option for those seeking a diamond-like appearance at a fraction of the cost.

Environmental and Ethical Considerations

Both moissanite and lab grown diamonds offer ethical alternatives to natural diamonds, as they don't involve mining. However, the production processes differ. Moissanite creation typically has a smaller environmental footprint due to its simpler composition and growth process.

Resale Value

Lab grown diamonds, being chemically identical to natural diamonds, may hold some resale value, although generally less than natural diamonds. Moissanite, being a distinct gemstone, has a more limited resale market.

Certification and Grading

Lab grown diamonds are graded and certified using the same criteria as natural diamonds (cut, color, clarity, and carat weight). Moissanite, however, is typically graded on a different scale, focusing mainly on color and clarity.

In conclusion, while moissanite and lab grown diamonds may appear similar at first glance, they are fundamentally different gemstones. Your choice between the two will depend on your priorities regarding cost, ethical considerations, optical properties, and how closely you want your stone to resemble a natural diamond. Both offer beautiful, durable options for jewelry, and understanding their differences allows you to make a choice that best aligns with your preferences and values.

Moissanite vs Diamond: A Durability Showdown

When considering a gemstone for jewelry, especially for pieces worn daily like engagement rings, durability is a crucial factor. Diamonds have long been celebrated for their hardness and durability, but how does moissanite compare? This article explores the durability of moissanite in relation to diamonds, helping you understand what to expect from this popular diamond alternative.

Understanding Hardness

The Mohs scale of mineral hardness is the standard measure used to assess a gemstone's resistance to scratching. On this scale:

  • Diamonds rank supreme at 10
  • Moissanite comes in at 9.25

This places moissanite as the second hardest gemstone used in jewelry, surpassed only by diamond. To put this into perspective, other popular gemstones like sapphires and rubies rank at 9, while emeralds are at 8.

Scratch Resistance

Given its high ranking on the Mohs scale, moissanite is extremely resistant to scratching. In everyday wear, it will hold up remarkably well, maintaining its polish and shine over time. While it's not quite as scratch-resistant as a diamond, the difference is negligible for most practical purposes.

Chip and Break Resistance

Hardness isn't the only factor in durability; toughness also plays a role. Toughness refers to a material's resistance to chipping and breaking. Moissanite performs excellently in this regard, often surpassing diamonds. Its crystal structure makes it less prone to chipping or breaking under impact compared to diamonds.

Heat and Chemical Resistance

Moissanite has a high melting point (over 2000°C) and is resistant to most chemicals encountered in daily life. This makes it suitable for everyday wear and means it can withstand common jewelry cleaning processes.

Clarity Stability

Unlike some gemstones that can become cloudy or change color over time, moissanite maintains its clarity and brilliance. It doesn't cloud or become milky with age, ensuring that your jewelry piece will look as good years down the line as it did when you first bought it.

Practical Implications

For all practical purposes, moissanite is durable enough to withstand the rigors of daily wear. It can be worn in rings, earrings, pendants, and other jewelry pieces without significant concern for damage. However, like all gemstones, it's not indestructible and can still be damaged by severe impacts or extreme conditions.

Care and Maintenance

While moissanite is highly durable, proper care can ensure its longevity:

  • Clean regularly with mild soap and water
  • Avoid harsh chemicals and ultrasonic cleaners
  • Remove jewelry during high-impact activities or when working with abrasive materials

Comparison to Other Gemstones

When compared to other popular gemstones used in jewelry, moissanite stands out for its durability:

  • It's harder than sapphires and rubies
  • Significantly more durable than emeralds, opals, or pearls
  • More resistant to scratching and chipping than cubic zirconia

In conclusion, while moissanite may not quite match the extreme hardness of diamond, it comes remarkably close. For all practical purposes, moissanite offers a level of durability that makes it suitable for everyday wear, even in engagement rings and other frequently worn jewelry. Its resistance to scratching, chipping, and environmental factors ensures that moissanite jewelry can maintain its beauty and integrity over time, making it a durable and practical choice for those seeking a diamond alternative.

Cost Comparison: Moissanite vs Lab Grown Diamonds

In the quest for beautiful, ethical, and affordable gemstones, both moissanite and lab grown diamonds have emerged as popular choices. While they share similarities in appearance, one of the most significant differences between these two options lies in their price. This article delves into the cost comparison between moissanite and lab grown diamonds, helping you understand the financial implications of choosing one over the other.

Overall Price Difference

The most striking difference between moissanite and lab grown diamonds is the price point. Moissanite is significantly less expensive than lab grown diamonds, often costing about 10-20% of the price of a comparable lab grown diamond. This substantial price difference makes moissanite an attractive option for those seeking a diamond-like appearance on a tighter budget.

Factors Affecting Price

Several factors influence the prices of both moissanite and lab grown diamonds:

  1. Size : As with most gemstones, larger stones command higher prices for both moissanite and lab grown diamonds. However, the price increase is much steeper for lab grown diamonds as size increases.
  2. Quality : For lab grown diamonds, factors like cut, color, and clarity significantly impact the price, similar to natural diamonds. Moissanite prices are less affected by these factors, as high-quality moissanite is more consistently produced.
  3. Brand : Some brands of moissanite or lab grown diamonds may be priced higher due to marketing, reputation, or proprietary production processes.

Price per Carat

To illustrate the price difference, let's consider a 1-carat stone:

  • A 1-carat moissanite might cost between $300 to $600
  • A 1-carat lab grown diamond of good quality could range from $1,500 to $3,000

This difference becomes even more pronounced with larger stones.

Long-term Value Considerations

When comparing prices, it's important to consider long-term value:

  • Lab grown diamonds, being chemically identical to natural diamonds, may retain some resale value, although typically less than natural diamonds.
  • Moissanite, as a distinct gemstone, has a more limited resale market.

Affordability and Ring Budgets

The lower cost of moissanite allows buyers to:

  • Choose a larger stone for the same budget
  • Opt for more elaborate settings or additional accent stones
  • Allocate budget to other aspects of a wedding or life expenses

Quality vs. Price Trade-offs

With lab grown diamonds, there's often a trade-off between quality and price. Buyers might need to compromise on size, color, or clarity to stay within budget. With moissanite, even high-quality, large stones remain relatively affordable, reducing the need for such trade-offs.

Market Trends

It's worth noting that while moissanite prices have remained relatively stable, the cost of lab grown diamonds has been decreasing as production technologies improve and become more widespread. However, moissanite still maintains a significant price advantage.

Ethical and Practical Considerations

Both moissanite and lab grown diamonds offer ethical alternatives to mined diamonds. The price difference often allows consumers to make choices aligned with both their ethical standards and budget constraints.

In conclusion, while both moissanite and lab grown diamonds offer beautiful and ethical alternatives to natural diamonds, moissanite presents a significantly more budget-friendly option. The choice between the two often comes down to personal preferences regarding appearance, budget constraints, and the importance placed on having a stone that's chemically identical to a diamond. Understanding this price difference allows consumers to make informed decisions that align with their financial situations and personal values, often enabling them to get a larger or higher-quality stone than they might otherwise afford with lab grown or natural diamonds.

Moissanite vs Diamond: A Visual Comparison for the Untrained Eye

In the world of gemstones, moissanite has gained popularity as a diamond alternative, largely due to its similar appearance. But just how close is this resemblance? Can moissanite truly pass as a diamond to someone who isn't a trained gemologist? This article explores the visual similarities and differences between moissanite and diamonds, helping you understand what the untrained eye might observe.

Initial Impressions

At first glance, moissanite can indeed pass as a diamond to many untrained observers. Both stones offer:

  • Colorless or near-colorless appearance
  • High level of brilliance and sparkle
  • Transparent, crystal-clear look

These similarities make moissanite an attractive option for those seeking a diamond-like appearance without the associated cost.

Brilliance and Fire

While both stones are brilliant, there are subtle differences:

  • Brilliance : This refers to the white light reflected from the stone. Both moissanite and diamonds are highly brilliant, but moissanite often appears even more brilliant due to its higher refractive index.
  • Fire : This is the colored light dispersion. Moissanite displays more fire than diamonds, creating more colorful flashes. Some find this attractive, while others prefer the more subdued fire of diamonds.

To the untrained eye, these differences might not be immediately apparent, especially in smaller stones or under normal lighting conditions.


High-quality moissanite is typically colorless or near-colorless, similar to high-grade diamonds. However:

  • Larger moissanite stones (over 1 carat) may display a slight yellow, gray, or green tint in certain lights.
  • This tint is often not noticeable to the untrained eye, especially in smaller stones or under normal lighting.


Moissanite is generally very clean in appearance:

  • Most moissanite used in jewelry is equivalent to VS (Very Slightly Included) or better on the diamond clarity scale.
  • To the naked eye, both high-quality moissanite and diamonds appear flawless.

Cut and Shape

Moissanite can be cut into all the popular diamond shapes:

  • Round brilliant
  • Princess
  • Oval
  • Cushion
  • And more

The cut quality of moissanite is generally very high, contributing to its diamond-like appearance.

Size and Weight

Moissanite is slightly less dense than diamond:

  • A 1-carat moissanite will appear slightly larger than a 1-carat diamond.
  • This size difference is usually not noticeable to the untrained eye.

Factors That Might Give It Away

While moissanite can often pass as a diamond, there are situations where differences might become noticeable:

  1. Extremely large stones : The color tint and increased fire in very large moissanite stones might be more apparent.
  2. Direct sunlight : The increased fire of moissanite is more noticeable in bright, direct light.
  3. Side-by-side comparison : When placed next to a diamond, subtle differences in brilliance and fire might become more apparent.
  4. Expert examination : Jewelers and gemologists can easily distinguish moissanite from diamonds using specialized tools.

Ethical Considerations

Some people choose to be upfront about their moissanite pieces, while others prefer not to discuss it. This is a personal choice, but it's worth considering the ethical implications of intentionally passing off moissanite as diamond.

The Growing Acceptance of Moissanite

As awareness of moissanite grows, many people are choosing it not as a diamond imitation, but as a beautiful gemstone in its own right. Its unique properties are increasingly appreciated and sought after.

In conclusion, to the vast majority of untrained observers, moissanite can indeed pass as a diamond in most everyday situations. Its brilliance, clarity, and overall appearance closely mimic those of a diamond, especially in smaller stones and under normal viewing conditions. While there are subtle differences that a trained eye or specific circumstances might reveal, for most practical purposes, moissanite offers a visually similar alternative to diamonds. Whether one chooses to present it as such or to appreciate it as its own unique gemstone is a matter of personal preference and ethical consideration.

Ethical Considerations: Moissanite vs Lab Grown Diamonds

In recent years, consumers have become increasingly conscious of the ethical implications of their purchases, particularly when it comes to luxury items like gemstones. Both moissanite and lab grown diamonds have emerged as ethical alternatives to mined diamonds, but they each come with their own set of considerations. This article explores the ethical aspects of choosing moissanite over lab grown diamonds.

Environmental Impact


  • Requires less energy to produce compared to lab grown diamonds
  • Simpler production process with a smaller carbon footprint
  • No mining involved, eliminating associated environmental damage

Lab Grown Diamonds:

  • More energy-intensive production process
  • Higher carbon footprint compared to moissanite, but still lower than mined diamonds
  • No mining involved, avoiding environmental damage associated with diamond mining

Both options are significantly more environmentally friendly than mined diamonds, but moissanite generally has the edge in terms of energy efficiency and overall environmental impact.

Labor Practices


  • Produced in controlled laboratory environments
  • Generally associated with fair labor practices and safe working conditions

Lab Grown Diamonds:

  • Also produced in controlled laboratory settings
  • Typically ensures fair labor practices and worker safety

Both options avoid the potential labor issues associated with diamond mining, such as exploitative practices or dangerous working conditions.

Conflict-Free Assurance


  • Entirely lab-created, guaranteeing conflict-free status
  • No association with "blood diamonds" or conflict zones

Lab Grown Diamonds:

  • Also guaranteed conflict-free due to lab creation
  • Provides an ethical alternative to mined diamonds with a similar chemical composition

Both moissanite and lab grown diamonds offer complete assurance of conflict-free status, addressing one of the primary ethical concerns associated with natural diamonds.

Resource Conservation


  • Composed of silicon carbide, abundant elements with no scarcity concerns
  • Production doesn't deplete rare mineral resources

Lab Grown Diamonds:

  • While not depleting natural diamond resources, they do require specific raw materials and significant energy input

Moissanite may have a slight advantage in terms of resource conservation due to its simpler composition and production process.

Economic Impact on Mining Communities


  • As a distinct gemstone, it doesn't directly compete with diamond mining economies

Lab Grown Diamonds:

  • May potentially impact diamond mining communities as they gain market share

This is a complex issue, as reducing reliance on mined diamonds can have both positive (reduced exploitation) and negative (economic disruption) effects on mining communities.

Transparency in Production


  • Generally high transparency in production methods
  • Often marketed with emphasis on ethical and environmental benefits

Lab Grown Diamonds:

  • Growing emphasis on transparency, but methods can vary between producers
  • Some debate over marketing practices and disclosure of lab-grown status

Both industries are generally moving towards greater transparency, but consumers should always research specific brands and producers.

Consumer Education and Perception


  • Requires consumer education as it's a distinct gemstone
  • Opportunity to promote ethical consumption without mimicking diamonds

Lab Grown Diamonds:

  • May be perceived as more "authentic" due to identical composition to mined diamonds
  • Potential for confusion or misrepresentation if not properly disclosed

Ethical considerations extend to how these gemstones are marketed and sold, with an emphasis on clear communication and consumer education.

Long-term Sustainability


  • Highly sustainable due to simple composition and production process
  • Likely to remain an ethical choice in the long term

Lab Grown Diamonds:

  • Sustainability is improving as technology advances
  • Energy use remains a consideration for long-term environmental impact

Both options present sustainable alternatives to mined diamonds, with ongoing improvements in production methods.

In conclusion, both moissanite and lab grown diamonds offer ethical alternatives to mined diamonds, addressing concerns about environmental impact, labor practices, and conflict-free status. Moissanite may have a slight edge in terms of environmental impact and resource conservation, while lab grown diamonds offer a chemically identical alternative to mined diamonds. Ultimately, the choice between the two comes down to personal values, priorities, and desired gemstone characteristics. By considering these ethical aspects, consumers can make an informed decision that aligns with their values while still obtaining a beautiful and durable gemstone for their jewelry.

Brilliance Showdown: Moissanite vs Lab Grown Diamonds

When choosing a gemstone for jewelry, especially for significant pieces like engagement rings, one of the most captivating qualities is its brilliance - the stone's ability to reflect light and sparkle. Both moissanite and lab grown diamonds are known for their impressive brilliance, but they have distinct characteristics that set them apart. This article delves into the comparison of brilliance between moissanite and lab grown diamonds, helping you understand what makes each stone unique in its sparkle.

Understanding Brilliance

Brilliance refers to the white light reflected from the surface and interior of a gemstone. It's what gives a stone its "sparkle" and is influenced by several factors:

  1. Refractive Index (RI): The measure of how much light bends when it enters the stone
  2. Cut: The angles and proportions of the stone's facets
  3. Clarity: The absence of inclusions that might interfere with light reflection

Refractive Index Comparison


  • Refractive Index: 2.65 - 2.69

Lab Grown Diamonds:

  • Refractive Index: 2.42

Moissanite's higher refractive index means it bends light more as it enters the stone, potentially leading to more brilliance and fire (dispersion of light into spectral colors).

The Impact on Appearance

Due to its higher refractive index, moissanite often appears more brilliant than lab grown diamonds, especially under certain lighting conditions. This increased brilliance can manifest as:

  1. More intense flashes of white light
  2. A greater perception of "life" in the stone
  3. Potentially more noticeable sparkle, even in low-light conditions

Fire and Dispersion

While brilliance refers to white light, fire describes the colored light dispersion. Moissanite is known for its high level of fire, often displaying more colorful flashes than lab grown diamonds. This can create a rainbow-like effect, which some find very appealing, while others prefer the more subdued fire of diamonds.

Cut Quality

The cut of a stone significantly impacts its brilliance:


  • Often cut to maximize its unique optical properties
  • Can be cut in all popular diamond shapes
  • High-quality cuts are standard due to its lab-created nature

Lab Grown Diamonds:

  • Cut according to ideal diamond proportions
  • Quality can vary, but high-quality cuts are readily available
  • Cut grades follow the same standards as natural diamonds

Both stones can achieve excellent cut quality, but the different optical properties mean they're optimized slightly differently.

Clarity and Its Effect on Brilliance


  • Generally very high clarity, with few to no visible inclusions
  • Clarity rarely impacts brilliance in moissanite

Lab Grown Diamonds:

  • Can have varying clarity grades, like natural diamonds
  • Higher clarity grades generally result in better brilliance

The typically high clarity of moissanite contributes to its impressive brilliance.

Size and Brilliance

As stones increase in size:


  • Brilliance and fire become more pronounced
  • Some may find larger moissanites too brilliant or "flashy"

Lab Grown Diamonds:

  • Maintain a consistent appearance across sizes
  • Large stones showcase faceting and cut quality

Lighting Conditions

The appearance of brilliance can vary under different lighting:

  • In natural daylight, the differences in brilliance may be more noticeable
  • Under artificial or dim lighting, both stones can appear very similar
  • Moissanite may appear more brilliant in low-light settings due to its higher refractive index

Personal Preference

The choice between moissanite and lab grown diamond brilliance often comes down to personal preference:

  • Some prefer the extra sparkle and fire of moissanite
  • Others favor the classic, more subdued brilliance of diamonds

Durability and Brilliance Over Time

Both moissanite and lab grown diamonds are durable enough to maintain their brilliance over time with proper care. Neither stone will cloud or lose its sparkle with normal wear.

In conclusion, while both moissanite and lab grown diamonds offer exceptional brilliance, moissanite generally presents a higher level of brilliance and fire due to its higher refractive index. Lab grown diamonds, being identical to natural diamonds, offer the classic diamond sparkle that many are familiar with and prefer. The choice between the two often comes down to personal taste - whether one prefers the extra dazzle of moissanite or the timeless sparkle of a diamond. Both stones offer beautiful, ethically-sourced options that will continue to shine brilliantly for years to come, making either choice a radiant addition to any jewelry collection.

Weighing the Options: Potential Drawbacks of Moissanite vs Lab Grown Diamonds

As moissanite gains popularity as a diamond alternative, it's important to consider not just its advantages, but also its potential drawbacks when compared to lab grown diamonds. While moissanite offers many benefits, there are some factors that might make it less suitable for certain individuals or situations. This article explores the potential disadvantages of choosing moissanite over lab grown diamonds, helping you make a fully informed decision.

Color Tinting in Larger Stones

One of the most notable disadvantages of moissanite is:

  • Larger stones (typically over 1 carat) may exhibit a slight yellow, gray, or green tint
  • This tinting is more noticeable in certain lighting conditions
  • Lab grown diamonds, like natural diamonds, are available in truly colorless options

For those seeking a large, colorless stone, this could be a significant drawback of moissanite.

Excessive Brilliance and Fire

While often considered an advantage, moissanite's high level of brilliance and fire can be a drawback for some:

  • The intense sparkle may be perceived as "too much" or "fake-looking" by some observers
  • In certain lighting, the rainbow-like flashes (fire) can be more pronounced than in diamonds
  • Those preferring a more subdued, classic look might find lab grown diamonds more suitable

Resale Value

When considering long-term value:

  • Moissanite generally has a lower resale value compared to lab grown diamonds
  • The market for second-hand moissanite is more limited
  • Lab grown diamonds, being chemically identical to natural diamonds, may retain value better

This could be a disadvantage for those viewing their purchase as a potential investment.

Social Perception and Tradition

In some social circles or cultures:

  • Moissanite may not be as widely accepted or understood as diamonds
  • There might be a stigma attached to choosing a diamond alternative
  • Lab grown diamonds, being chemically identical to mined diamonds, might face less scrutiny

This social factor could be a drawback in certain situations or for certain individuals.

Limited Size Options

While moissanite is available in a range of sizes:

  • Very large moissanite stones (equivalent to 3+ carats) are less common
  • Color tinting becomes more apparent in larger sizes
  • Lab grown diamonds offer more options for those seeking very large stones

This could be a limitation for those desiring exceptionally large gemstones.

Hardness Difference

Although moissanite is very hard, it's not quite as hard as diamond:

  • Moissanite ranks 9.25 on the Mohs scale, while diamonds (including lab grown) rank 10
  • Over very long periods, moissanite might show slightly more wear than a diamond
  • This difference is minimal and unlikely to be noticeable in normal wear

Heat Sensitivity

Moissanite can be more sensitive to extreme heat than diamonds:

  • Very high temperatures can potentially damage moissanite
  • This is rarely an issue in everyday wear but could be a concern in certain professions or activities
  • Lab grown diamonds, like natural diamonds, are more resistant to heat

Identification by Professionals

For those concerned about their stone being identifiable as non-diamond:

  • Jewelers and gemologists can easily distinguish moissanite from diamond
  • Lab grown diamonds require more sophisticated equipment to differentiate from natural diamonds
  • This might be a concern if passing the stone as a natural diamond is important (though this raises ethical questions)

Limited Fancy Color Options

While colored moissanite exists:

  • The range of colors is more limited compared to lab grown diamonds
  • Achieving certain colors in moissanite can be challenging
  • Lab grown diamonds offer a wider range of fancy colors

This could be a drawback for those seeking specific colored gemstones.

Psychological Factors

For some individuals:

  • The knowledge that moissanite is not a "real diamond" might be psychologically unsatisfying
  • Lab grown diamonds, being chemically identical to natural diamonds, might provide more emotional satisfaction

This is a highly personal factor that varies greatly between individuals.

In conclusion, while moissanite offers many advantages as a diamond alternative, it's important to consider these potential drawbacks when making a decision. The significance of these disadvantages will vary depending on individual preferences, cultural contexts, and specific needs. For many, the benefits of moissanite – including its lower cost, ethical sourcing, and unique optical properties – outweigh these potential drawbacks. However, for those seeking a stone that's chemically identical to a natural diamond or who have concerns about some of the factors mentioned above, lab grown diamonds might be a more suitable choice. Ultimately, the decision between moissanite and lab grown diamonds should be based on a careful consideration of personal priorities, budget, and desired gemstone characteristics.

The Creation Process: Moissanite vs Lab Grown Diamonds

In the world of gemstones, both moissanite and lab grown diamonds have emerged as popular alternatives to natural diamonds. While they may look similar to the untrained eye, their creation processes are quite distinct. This article delves into the methods used to create moissanite and lab grown diamonds, highlighting the key differences in their production.

Moissanite Creation

Moissanite is a naturally occurring mineral, silicon carbide, but it's extremely rare in nature. The moissanite used in jewelry is almost exclusively lab-created.

The Process:

  1. Starting Material: The process begins with high-purity silicon and carbon powders.
  2. Thermal Decomposition: These powders are heated to extremely high temperatures (over 2000°C) in a furnace.
  3. Crystal Growth: As the mixture cools, silicon carbide crystals begin to form.
  4. Seed Crystal: A small seed crystal of silicon carbide is introduced to guide the growth of larger crystals.
  5. Slow Growth: The crystals grow very slowly, often taking weeks or months to reach a suitable size.
  6. Cutting and Polishing: Once grown, the crystals are cut and polished into the desired shapes for jewelry.

This process is known as thermal sublimation and results in a crystal structure that gives moissanite its unique optical properties.

Lab Grown Diamond Creation

Lab grown diamonds are chemically, physically, and optically identical to natural diamonds. There are two primary methods used to create them:

1. High Pressure High Temperature (HPHT)

The Process:

  1. Carbon Source: A small diamond seed is placed in carbon (usually in the form of graphite).
  2. Extreme Conditions: This is subjected to temperatures around 1500°C and pressures of about 1.5 million pounds per square inch.
  3. Diamond Growth: Under these conditions, the carbon melts and starts to form a diamond around the seed.
  4. Cooling: As it cools, a synthetic diamond is formed.

2. Chemical Vapor Deposition (CVD)

The Process:

  1. Seed Placement: A thin slice of diamond seed is placed in a sealed chamber.
  2. Gas Introduction: The chamber is filled with carbon-rich gas (usually methane).
  3. Ionization: The gas is ionized into plasma using microwaves, heat, or other techniques.
  4. Carbon Deposition: This causes the carbon atoms to adhere to the seed, slowly building up a diamond.
  5. Growth Period: This process can take several weeks to produce a market-sized diamond.

Key Differences in Creation

  1. Chemical Composition:
    • Moissanite is silicon carbide
    • Lab grown diamonds are pure carbon
  2. Growth Speed:
    • Moissanite typically grows faster than lab diamonds
  3. Temperature Requirements:
    • Moissanite creation generally requires higher temperatures
  4. Complexity:
    • Diamond growth processes are typically more complex and energy-intensive
  5. Seed Material:
    • Moissanite uses silicon carbide seeds
    • Lab diamonds use diamond seeds
  6. Post-Growth Treatment:
    • Some lab grown diamonds undergo post-growth treatments to enhance color
    • Moissanite rarely requires post-growth treatment

Environmental Considerations

  • Moissanite production generally has a lower environmental impact due to lower energy requirements and simpler processes.
  • Lab diamond creation, especially HPHT, can be more energy-intensive.

Quality Control

Both processes allow for high levels of quality control, resulting in gemstones with fewer inclusions than their natural counterparts.


  • Moissanite production is generally easier to scale up.
  • Lab diamond production, especially using CVD, has seen significant advancements in scalability in recent years.

In conclusion, while both moissanite and lab grown diamonds are created in controlled laboratory environments, their creation processes differ significantly. Moissanite is a distinct compound created through a relatively straightforward thermal process, while lab grown diamonds replicate the extreme conditions under which natural diamonds form. Understanding these differences can provide insight into the properties, availability, and pricing of these gemstones. Both processes represent significant technological achievements, offering consumers ethical and customizable alternatives to mined diamonds.

Distinguishing Moissanite from Lab Grown Diamonds: A Jeweler's Perspective

In the world of gemstones, moissanite and lab grown diamonds have both gained popularity as alternatives to natural diamonds. While they may appear similar to the untrained eye, professional jewelers have several methods at their disposal to distinguish between these stones. This article explores how jewelers can tell the difference between moissanite and lab grown diamonds, and what tools and techniques they use in the process.

Visual Inspection

Experienced jewelers can often spot differences through careful visual inspection:

  1. Brilliance and Fire: Moissanite typically displays more fire (colorful flashes) than diamonds.
  2. Color: Large moissanites may have a slight yellow or grayish tint, especially in certain lights.
  3. Facet Patterns: The cut and facet patterns can sometimes differ between moissanite and diamonds.

However, visual inspection alone is not always reliable, especially with high-quality stones.

Use of Standard Jeweler's Tools

Jewelers often start with simple, readily available tools:

  1. Loupe: A 10x magnification loupe can reveal differences in inclusions and crystal structure.
  2. Thermal Conductivity Probe: Standard diamond testers based on thermal conductivity may not reliably distinguish moissanite from diamond, as moissanite can sometimes register as diamond on these devices.

These basic tools, while useful, are not always definitive in distinguishing moissanite from lab grown diamonds.

Advanced Testing Methods

For a definitive identification, jewelers turn to more sophisticated equipment:

  1. Electrical Conductivity Testing:
    • Moissanite is electrically conductive, while diamonds are not.
    • Specialized moissanite testers use this property for identification.
  2. Refractometer:
    • Measures the refractive index of the stone.
    • Moissanite has a higher refractive index (2.65-2.69) compared to diamond (2.42).
  3. Spectroscope:
    • Analyzes the spectrum of light passing through the stone.
    • Moissanite and diamonds have different spectral patterns.
  4. X-ray Fluorescence:
    • Can detect the presence of silicon in moissanite.
  5. Raman Spectroscopy:
    • Provides a detailed analysis of the stone's molecular structure.
    • Can definitively distinguish between moissanite and diamond.

Specific Challenges with Lab Grown Diamonds

Distinguishing lab grown diamonds from moissanite is generally easier than separating them from natural diamonds:

  • Lab grown diamonds are chemically and physically identical to natural diamonds.
  • The same tools that distinguish moissanite from natural diamonds work for lab grown diamonds.

Factors That Can Complicate Identification

  1. Stone Size: Smaller stones can be more challenging to identify definitively.
  2. Quality of the Stone: Very high-quality moissanite can be more difficult to distinguish at a glance.
  3. Newer Varieties: As moissanite production techniques improve, some newer varieties may require more advanced testing.

Professional Training and Experience

Accurate identification often relies on a jeweler's training and experience:

  • Many jewelers undergo specific training to identify different gemstones.
  • Experience with handling both moissanite and diamonds improves accuracy in identification.

Ethical Considerations

Jewelers have an ethical obligation to correctly identify and disclose the nature of gemstones:

  • Misrepresentation of moissanite as diamond (or vice versa) is considered unethical and often illegal.
  • Reputable jewelers will always strive for accurate identification and transparent communication.

Consumer Implications

For consumers, this means:

  • Always purchase from reputable jewelers who have the tools and expertise to correctly identify stones.
  • If in doubt, request a certified gemological report.
  • Be wary of deals that seem too good to be true, as they may involve misrepresented stones.

The Future of Gemstone Identification

As technology advances, new tools are being developed:

  • Portable spectroscopic devices are becoming more common and affordable.
  • AI and machine learning are being applied to gemstone identification.

These advancements may make it even easier for jewelers to quickly and accurately identify different types of gemstones.

In conclusion, while moissanite and lab grown diamonds can appear very similar, trained jewelers have a variety of tools and techniques at their disposal to tell them apart. From simple visual inspection to advanced spectroscopic analysis, these methods ensure that jewelers can provide accurate information about the stones they sell. As a consumer, understanding these processes can help you make informed decisions and ensure you're getting exactly the gemstone you desire, whether it's a brilliant moissanite or a lab grown diamond.

Moissanite: A Sparkling Alternative for Engagement Rings

When it comes to choosing an engagement ring, couples are increasingly looking beyond traditional diamond options. Moissanite has emerged as a popular alternative, offering a blend of brilliance, durability, and affordability. But is moissanite truly a good choice for an engagement ring? This article explores the pros and cons of choosing moissanite for this significant piece of jewelry.

Brilliance and Beauty

One of moissanite's standout features is its exceptional brilliance:

  • Higher refractive index than diamonds, resulting in more sparkle
  • Displays more fire (colorful light dispersion) than diamonds
  • Available in various cuts and shapes, mimicking popular diamond styles

For those seeking a dazzling ring that catches the light, moissanite is an excellent choice.

Durability for Daily Wear

Engagement rings need to withstand daily wear, and moissanite holds up well:

  • Ranks 9.25 on the Mohs scale of hardness (diamonds are 10)
  • Resistant to scratching, chipping, and breaking
  • Maintains its clarity and doesn't cloud over time

This durability ensures that a moissanite engagement ring can be a lasting symbol of commitment.


Perhaps one of the most significant advantages of moissanite is its price point:

  • Significantly less expensive than diamonds of comparable size and quality
  • Allows for larger stones or more intricate settings within the same budget
  • Provides an opportunity to allocate funds to other aspects of wedding planning or life goals

Ethical and Environmental Considerations

For socially conscious couples:

  • Lab-created, avoiding issues associated with diamond mining
  • Lower environmental impact compared to mined diamonds
  • Conflict-free, addressing concerns about "blood diamonds"

Customization and Availability

Moissanite offers flexibility in design:

  • Available in a wide range of sizes, including large carat weights that would be prohibitively expensive in diamonds
  • Can be set in various metals and styles
  • Allows for unique, customized designs

Longevity and Value

While moissanite is durable, there are some considerations:

  • May not have the same emotional or investment value as diamonds
  • Less established resale market compared to diamonds
  • Potential for technological advancements to affect future value

Social Perceptions

The social aspect of choosing moissanite varies:

  • Increasing acceptance as an engagement ring stone
  • Some may still prefer the tradition and status associated with diamonds
  • Opportunity to educate others about alternative gemstones

Color Considerations

While generally colorless, there are some color-related factors:

  • Large moissanite stones may exhibit a slight color tint
  • Color grading differs from diamonds, which may be important to some buyers

Maintenance and Care

Moissanite is relatively easy to maintain:

  • Can be cleaned with standard jewelry cleaning methods
  • Doesn't require special care beyond what's typical for fine jewelry

Personal Meaning and Symbolism

Ultimately, the choice of an engagement ring is deeply personal:

  • Some couples find the uniqueness of moissanite appealing
  • Others may prefer the traditional symbolism of a diamond
  • The ring's meaning comes from the commitment it represents, regardless of the stone

Future Trends

The popularity of moissanite in engagement rings is growing:

  • Increasing awareness and acceptance among younger generations
  • Aligns with trends towards ethical consumption and value-based purchasing
  • Continued improvements in moissanite production may further enhance its appeal

Making the Decision

When considering moissanite for an engagement ring, couples should:

  • Discuss their values, budget, and style preferences
  • View moissanite in person to appreciate its unique qualities
  • Consider long-term satisfaction with the choice

In conclusion, moissanite presents a compelling alternative for engagement rings. Its exceptional brilliance, durability, and affordability make it an attractive option for many couples. While it may not carry the same traditional status as diamonds, moissanite offers an opportunity to have a beautiful, ethical, and budget-friendly engagement ring. The decision ultimately depends on personal preferences, values, and what the ring symbolizes to the couple. As with any significant jewelry purchase, it's important to buy from reputable sources and to choose a ring that resonates with your personal story and commitment. Whether you opt for moissanite or another gemstone, the true value of an engagement ring lies in the love and promise it represents.