When one thinks of alternatives to precious stones, one would think of two stones: moissanite and cz. These two stones look beautiful and cost only a fraction of real diamonds; they seem to be winning popularity contests as alternative options for engagement rings and fine jewelry. While both look completely similar, they differ in almost every other way, where quality, durability, and price are concerned.
This guide will explain the key differences and help you make the right choice.
Moissanite or Cubic Zirconia: What Are They?
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Moissanite: Original natural moissanite was found in meteorites, which means it is so rare in nature. Today's moissanite is a lab-created one, constructed with silicon carbide, and has diamond-like brilliance.
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Cubic Zirconia (CZ): This is a synthetic stone made of Zirconium Dioxide and is mass-produced cheaply, making it easy to find in fashion jewelry.
In other words, Moissanite is a high-quality diamond alternative, while CZ is a more affordable option.
CZ vs Moissanite: Appearance, Sparkle, and Brilliance
The main reason buyers choose either of these stones is for their sparkle. But there is a very distinct difference in the types of sparkle.

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So, if you are looking for something that looks close to sparkling diamonds forever, Moissanite is the best option.
Durability and Longevity: What lasts longer?
For pieces you will wear often, like engagement rings or daily jewelry, durability is the key factor.
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Moissanite: Just under diamond on the Mohs hardness scale at 9.25. Super scratch-resistant, pretty durable for everyday wear, with plenty of comfort.
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CZ: Rates between 8 and 8.5 on the Mohs hardness scale. Softer than Moissanite, it scratches so easily and will lose its shine.
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In short, Moissanite can last for decades, while CZ may lose its shine faster and may need replacement sooner.
Price, Value, and Sustainability
Price is usually given as the excuse, but value means much more than price.
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CZ is generally the lowest-cost option in the market and is often used in fashion jewelry, but it tends to lose value quickly.
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Moissanite costs more than CZ but far less than diamonds. It keeps its brilliance for years, making it a lasting and valuable choice for engagement rings.
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Sustainability: Both stones are lab-grown. Since moissanite lasts longer and requires fewer replacements, it can be considered a more sustainable choice. It lasts longer and generates less waste.
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Think of CZ as a short-term style choice and Moissanite as affordable luxury.
Which Stone Should You Choose for Your Jewelry?
Determine which stone to pick based on one's needs and budgetary considerations:
Choose Moissanite if:
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You want a diamond-like look without having to pay the price.
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You are very particular about durability and long-lasting brilliance.
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Buying an engagement ring or any fine jewelry for eternity.
Choose CZ if:
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You want a super-budget option.
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You are buying jewelry for occasional wear or trendy pieces.
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Moissanite is generally the better investment when comparing meaningful engagement rings.
Moissanite vs CZ: Our Verdict
When viewing Moissanite vs CZ, the biggest differences are in both quality and longevity. CZ may be chic on the cheap, but it is not going to last, while Moissanite is a diamond-like, sustainable stone, with incredible aesthetics, and will last decades!
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When it comes to elegant, long-lasting jewelry that will hold value over time, Moissanite is the winner. Explore CMD Jewelry’s moissanite collection to see how these stones look in real designs.
FAQs
Q1. What are the differentiating aspects of Moissanite, Diamonds, and CZ Stones?
In a nutshell, while Moissanite is tough like diamond with lasting brilliance, CZ is more affordable but also less durable than that. Diamonds, on the other hand, are a natural premium choice.
Q2. Which is better between the CZ and Moissanite stones for engagement rings?
Moissanite engagement rings are generally the better option, as they surprisingly last longer than a CZ stone, with the latter being for special occasions.
Q3. Compare the Sparkle: CZ vs Moissanite vs Diamond.
Moissanite has fiery rainbow sparkle, while diamonds are classic-brilliant, with CZ shining brightly yet more like glass.
Q4. Lab diamond, CZ, vs Moissanite?
Lab diamonds are the closest natural diamonds, moissanite is a brilliant and affordable alternative to that, while CZ is a budget-friendly one.
Q5. Is it fair to compare the CZ diamond vs Moissanite?
It is rightly so. CZ "diamond" is synthetic zirconia and consequently less durable, while moissanite is tougher and retains its brilliance across decades.