When shopping for a diamond, you may come across both lab-created diamonds and diamond simulants. While they may appear similar, these two types of stones have distinct differences in composition, durability, and value. Understanding these differences is crucial to making an informed jewelry purchase.
What Are Lab-Created Diamonds?
Lab-created diamonds are real diamonds produced in a controlled laboratory environment using advanced technological processes such as Chemical Vapor Deposition (CVD) or High-Pressure High-Temperature (HPHT). These diamonds have the same physical, chemical, and optical properties as natural, mined diamonds, making them indistinguishable even under a jeweler’s loupe.
Key Features of Lab-Created Diamonds:
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Composed of pure carbon, just like natural diamonds
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Exhibit the same brilliance, fire, and durability
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Ethically sourced with minimal environmental impact
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More affordable than mined diamonds of similar quality
What Are Diamond Simulants?
Diamond simulants are stones that resemble diamonds in appearance but do not share their chemical composition or hardness. Popular diamond simulants include cubic zirconia (CZ) and moissanite. While they can be visually appealing, they do not offer the same durability or long-term value as real diamonds.
Key Features of Diamond Simulants:
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Made from different materials (e.g., cubic zirconia is zirconium dioxide, moissanite is silicon carbide)
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Less durable and more prone to scratches over time
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Can be distinguished from diamonds under magnification
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More affordable than both mined and lab-created diamonds
Key Differences Between Lab-Created Diamonds and Simulants
| Feature | Lab-Created Diamonds | Diamond Simulants |
|---|---|---|
| Composition | Pure carbon | Other minerals (CZ, Moissanite) |
| Hardness (Mohs Scale) | 10 (Same as mined diamonds) | CZ: 8-8.5, Moissanite: 9.25 |
| Brilliance | Same as mined diamonds | Different light dispersion (CZ is glassy, Moissanite is fiery) |
| Durability | Extremely durable | Less durable, can scratch easily |
| Price | More affordable than mined diamonds | Lower cost but less long-term value |
Which Should You Choose?
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Choose a Lab-Created Diamond if you want a genuine diamond with lasting value, ethical sourcing, and a lower price compared to mined diamonds.
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Choose a Diamond Simulant if you are looking for an affordable alternative for temporary or fashion jewelry.
Final Thoughts
While both lab-created diamonds and diamond simulants can be stunning, lab-created diamonds offer the best combination of authenticity, durability, and value. If you want the brilliance and prestige of a real diamond without the ethical concerns of mining, lab-grown diamonds are the perfect choice.
Are lab-grown diamonds real? Learn more.
