Lab-grown diamonds are often compared to natural diamonds, especially in terms of hardness.
Both lab-grown and natural diamonds score a perfect 10 on the Mohs hardness scale.
This perfect score means they are equally durable and resistant to scratching, making them ideal for everyday wear.
The hardness of diamonds, whether lab-grown or natural, is determined by their structure and purity.
Diamonds are made up of carbon atoms bonded tightly in a crystal lattice, which gives them their exceptional hardness.
The hardness of a diamond can vary slightly depending on its crystalline perfection and orientation.
For example, diamonds with flawless and pure crystals, oriented along the [111] direction, exhibit higher hardness.
In lab-grown diamonds, the hardness can also be influenced by the method of production and the type of diamond produced.
Nanocrystalline diamond produced through Chemical Vapor Deposition (CVD) can have a hardness ranging from 30% to 75% of that of single-crystal diamond.
This variability allows for the hardness to be tailored for specific applications.
Some synthetic single-crystal diamonds and HPHT (High Pressure High Temperature) nanocrystalline diamonds can even be harder than any known natural diamond.
Both lab-grown and natural diamonds are recognized for their hardness and durability.
The Gemological Institute of America (GIA) has been grading laboratory-grown diamonds since 2007.
The GIA no longer uses the term "synthetic" for lab-grown diamonds, reflecting their equivalence in hardness and other properties to natural diamonds.
This recognition underscores the fact that lab-grown diamonds are chemically, optically, and physically identical to natural diamonds, including their hardness.
In summary, lab-grown diamonds offer the same hardness and durability as natural diamonds, making them a cost-effective and viable choice for those seeking high-quality diamonds.
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