What is the Difference Between Simulated Diamond and Lab-Created Diamond?

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The main difference between simulated diamonds and lab-created diamonds lies in their composition, physical properties, and authenticity. Here are the key differences between the two:

  1. Composition: Simulated diamonds, such as moissanite or cubic zirconia (CZ), are made from different materials than lab-created diamonds. Lab-created diamonds are produced using a tiny carbon diamond seed and arranging carbon atoms under high pressure and high temperature (HPHT) or using a specific deposition process known as chemical vapor deposition (CVD).
  2. Physical Properties: Lab-created diamonds have the same physical, chemical, and visual attributes as actual mined diamonds, making them nearly impossible to distinguish from natural diamonds without specialized equipment. In contrast, simulated diamonds have different physical, chemical, and optical properties compared to lab diamonds.
  3. Authenticity: Lab-created diamonds are considered authentic and can be graded via the same system as natural diamonds. Simulated diamonds, on the other hand, are not graded the same and do not carry the same optical, chemical, or physical properties as lab-created diamonds.
  4. Cost: Lab-created diamonds are generally less expensive than natural diamonds of similar quality, making them a more affordable option for those looking to customize their dream ring. Simulated diamonds, while still less expensive than both lab-created and natural diamonds, may not offer the same brilliance and optical qualities as lab-created diamonds.

In summary, lab-created diamonds are made from carbon and have the same physical, chemical, and visual attributes as natural diamonds, while simulated diamonds are made from different materials and have distinct properties. Lab-created diamonds are considered authentic and can be graded like natural diamonds, whereas simulated diamonds are not graded the same and do not carry the same properties as lab-created diamonds.

Comparative Table: Simulated Diamond vs Lab-Created Diamond

Here is a table comparing the differences between simulated diamonds and lab-created diamonds:

Feature Simulated Diamonds Lab-Created Diamonds
Composition Made of synthetic materials such as silicon or beryllium Made of pure carbon, the same as natural diamonds
Physical, Chemical, and Visual Attributes Different from natural diamonds; can be distinguished with the naked eye due to their bright sparkle and rainbow refractions Nearly impossible to distinguish from natural diamonds, even with skilled gemological equipment
Durability Less durable than natural or lab-created diamonds, may scratch or lose luster over time More durable, with properties similar to natural diamonds, can withstand heat, pressure, and friction
Cost Generally more affordable than lab-created diamonds More expensive than simulated diamonds, but still 30% less than natural diamonds of comparable size and quality
Appearance Can be more colorful and have a more uniform appearance Often have a more natural color variation and clarity

Simulated diamonds, such as cubic zirconia or moissanite, are made of synthetic materials and have different physical, chemical, and visual properties compared to natural diamonds. Lab-created diamonds, on the other hand, have the same physical, chemical, and visual properties as natural diamonds, making them nearly indistinguishable even under close inspection. They are also more expensive than simulated diamonds but still offer a more affordable alternative to natural diamonds.