How to Tell the Difference: Moissanite vs Lab Grown Diamond Jewellery

How to Tell the Difference: Moissanite vs Lab Grown Diamond Jewellery

Dive into the sparkling debate of Moissanite vs Lab Grown Diamonds, the two gems challenging traditional diamonds' reign. As a diamond expert, I'll guide you through their differences, from origins to aesthetics, helping you decide which gem suits your taste and wallet. Let's embark on this glittering journey to discover which of these radiant rivals will adorn your next exquisite piece.

What is Moissanite?

Moissanite, a gemstone born from the stars, was discovered in 1893 and is made from silicon carbide. Known for its dazzling brilliance and rainbow sparkle, it rivals diamonds in appearance and surpasses them in eco-friendliness. With a Mohs hardness of 9.25, Moissanite is both durable and suitable for everyday wear, making it a popular choice for those seeking beauty and sustainability.

What is a Lab Grown Diamond?

Lab Grown Diamonds are real diamonds produced in controlled laboratory settings, mimicking natural processes to create stones identical to mined diamonds. These gems offer a sustainable and ethical alternative, boasting the same properties as their earth-mined counterparts but with reduced environmental impact. Popular for their ethical values and cost-effectiveness, Lab Grown Diamonds represent a conscious choice in modern luxury.

Moissanite vs Lab Grown Diamond: Key Differences



Lab Grown Diamond


Silicon carbide (SiC)

Pure carbon (C)


Synthetic, originally discovered in meteorites

Synthetic, created in labs


Higher refractive index, more fiery and sparkly

Identical to natural diamonds, with classic sparkle


9.25 on the Mohs scale

10 on the Mohs scale


Often nearly colorless, can have slight gray or yellow hues

Range from colorless to various hues, similar to mined diamonds


Generally less expensive

More expensive than Moissanite, but often less than mined diamonds

Environmental Impact

Minimal, sustainable production

Varies, but generally lower impact than mined diamonds

Best for

Those seeking unique brilliance and eco-friendly options

Buyers looking for the prestige of diamonds with a lower environmental footprint


Price Comparison: Moissanite vs Lab Grown Diamond

When it comes to adorning oneself with the sparkle of gemstones, the budget often plays a leading role in the final decision. Moissanite and Lab Grown Diamonds, while both more wallet-friendly than their natural diamond counterparts, have distinct price points that reflect their market positions.

Moissanite is renowned for its cost-effectiveness. Typically, it costs significantly less per carat compared to any form of diamond, making it a highly attractive option for those seeking the diamond-like experience without the hefty price tag. Its price is primarily influenced by size and clarity, but even high-quality Moissanite remains accessible.

Lab Grown Diamonds, on the other hand, present a slightly different financial picture. They are more expensive than Moissanite but still offer a substantial saving—often 30% to 40% less—compared to mined diamonds. The pricing of Lab Grown Diamonds closely follows the traditional diamond market metrics, including the 4Cs (Cut, Color, Clarity, and Carat Weight), which means larger or higher quality stones will command higher prices.

In summary, while both Moissanite and Lab Grown Diamonds offer a more affordable entry into the world of luxurious gemstones, Moissanite leads in terms of cost-efficiency. Lab Grown Diamonds, meanwhile, provide value by offering the real diamond experience at a reduced cost, blending luxury with practicality.

How to Choose Between Moissanite and Lab Grown Diamonds

Deciding between Moissanite and Lab Grown Diamonds hinges on personal preferences, values, and the intended use of the gemstone. Here are factors to consider that will help you make an informed choice:

  1. Aesthetics: Moissanite is known for its fiery brilliance and slightly more colorful sparkle compared to diamonds. If you adore a gem that radiates with a rainbow-like effect, Moissanite might be your gemstone of choice. Lab Grown Diamonds, offering the classic diamond appearance, are perfect for those who cherish the traditional diamond sparkle with its understated elegance.
  2. Budget: Moissanite is considerably more affordable than both Lab Grown and mined diamonds, making it an excellent choice for those on a tighter budget. Lab Grown Diamonds, while more expensive than Moissanite, still provide a cost-effective alternative to natural diamonds without compromising on the look or quality.
  3. Durability: While both stones are durable, diamonds top the Mohs scale of mineral hardness at a perfect 10, making them the hardest and most scratch-resistant material. Moissanite follows closely at 9.25, which is still incredibly durable for everyday wear. Your lifestyle and how often you plan to wear the piece should influence your decision.
  4. Ethical and Environmental Considerations: Both Moissanite and Lab Grown Diamonds offer more ethical and environmentally friendly alternatives to mined diamonds. If minimizing your environmental impact is a priority, both options are commendable; however, your personal stance on issues such as lab creation versus natural occurrence might tip the scale.
  5. Future Considerations: Think about the long-term aspects of your purchase. While both options retain value, the resale market for diamonds typically remains more robust than that for Moissanite. However, the sentimental value and the joy of wearing your chosen gemstone often outweigh purely financial considerations.

Care and Maintenance

To keep Moissanite and Lab Grown Diamonds dazzling, follow these simple care tips:

  • Cleaning: Regularly clean with a soft brush, warm water, and mild soap to remove dirt.
  • Professional Inspections: Annually check for loose settings or damage with a jeweler.
  • Storage: Store separately in soft pouches or a jewelry box to prevent scratches.
  • Avoid Harsh Conditions: Remove jewelry during activities that could expose it to extreme conditions or chemicals.
  • Consider the Setting: Different metal settings require specific care, like polishing silver to prevent tarnish.

Both Moissanite and Lab Grown Diamonds are durable, but proper maintenance ensures they remain in pristine condition.

Which One to Buy

When choosing between Moissanite and Lab Grown Diamonds, consider aesthetics, budget, durability, and ethical implications. Moissanite offers vibrant sparkle and affordability, while Lab Grown Diamonds provide classic elegance and a nod to tradition. Both require regular care to maintain their luster. Your final choice should align with personal values and lifestyle, ensuring the gemstone you select not only dazzles but also resonates with your principles and preferences.

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