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Simulated Diamond vs Moissanite: Understanding the Differences

by Princess Samosino
Apr 21, 2025

Introduction

The two primary forms that most will consider if they are searching for synthetic diamonds to natural diamonds are simulated diamonds and moissanite. Although both offer aesthetic value and cheap price, they differ in many ways in terms of composition, durability, and the charm factor. This blog will share the slight differences between simulated diamond vs. moissanite to help you choose wisely for your next purchase in jewelry.

What is a Simulated Diamond?

A blue diamond set against a solid black background, highlighting its color and shape.

Simulated diamonds are gemstones designed to look very much like natural diamonds, though they can be made from very many different materials, including cubic zirconia (CZ), white sapphire, and other synthetics. Simulated diamonds usually cost less than natural diamonds or lab-grown diamonds, making them an attractive alternative for the cost-conscious consumer. However, it is best to note that artificial or simulated diamonds are not real diamonds, as they do not have the same physical and chemical properties.

What is Moissanite?

A round brilliant cut diamond displayed on a clean white background, showcasing its clarity and sparkle.

Moissanite is a silicon carbide (SiC) gemstone. It was discovered in a meteor crater by Henri Moissan in 1893 and has since then been synthesized for use in jewelry. Moissanite is recognized for its astonishing brilliance and fiery nature, typically greater than that of a natural diamond because of its higher refractive index (2.65-2.69). It is rated on the Mohs scale as 9.25, making it relatively tough and excellent for daily wear.

Key Differences Between Simulated Diamonds and Moissanite

Infographic comparing simulated diamonds and moissanite, highlighting differences in material, brilliance, longevity, price, and visual characteristics.

1. Composition

  • Simulated Diamonds:

    They are made of diverse materials such as cubic zirconia or white sapphire and are not chemically identical to natural diamonds.

  • Moissanite:

    It is formed solely from silicon carbide that gives it notable unique optical properties and durability.

2. Brilliance and Fire

  • Artificial Diamonds:

    Their reflection of light is quite unreliable and very low compared with the brilliant fire of moissanite or the natural diamonds.

  • Moissanite:

    Because of its high index of refraction and dispersion, it is characterized by brilliant light flashes in a spectrum of colors that form beautiful colored flashes of light.

3. Durability

  • Simulated Diamonds:

    The endurance of such artificial stones varies with the composition; one example is cubic zirconia that ranks about 8-8.5 on the Mohs's scale.

  • Moissanite:

    It stands at about 9.25 on the Mohs scale, thus giving it a considerable advantage over most synthetic counterparts as it is much less prone to scratches and chips.

4. Cost

  • Simulated Diamonds:

    Generally, it is cheaper than both natural diamonds and lab-created diamonds.

  • Moissanite:

    Moissanite tends to be more expensive than average artificial diamonds like CZ because of their superior properties.

5. Appearance

Both look quite similar at first glance, but when you dig closer into it, you can find differences:

  • Simulated Diamonds:

    Appear very much perfect and without any imperfections or flaws.

  • Moissanite:

    It has inclusions but typically has a distinct sparkle that some find attractive.

Conclusion

Simulated diamond enriched moissanite comes down to an individual's personal preferences regarding the look, budget, and even ethical ideas surrounding the two. For the blend criteria of budget and selection in large quantities, simulated diamonds might be ideal for you. On the other hand, moissanite is probably the best bet for those who are looking for a gem that offers especially brilliant sparkle, durability, and above all (yet still ethical) sourcing.

Perfectly fabulous diamond alternatives that will not empty your wallets or deprive you of your style or ethics. Such considerations should give you exactly what you are looking for in an engagement ring or other fine jewelry piece while taking stock of your choices-things that define your values and aesthetic preferences.

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About the Author


Princess Samosino

Princess Samosino

Princess Samosino crafts engaging content that brings jewelry stories to life. She blends creativity and clarity to connect readers with the beauty of each piece.

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