70 years to cultivate the world's largest synthetic diamond more than 3 carats

American family diamond company, after 70 years, has produced the world's largest synthetic diamond.

This artificial diamond, born in the laboratory, has a diameter of 3.04 carats, which is difficult to distinguish from the natural diamond on the right. Synthetic diamonds have the same optical, physical and chemical properties as natural diamonds, and are half the price.

Lisa Bissell, president and CEO of Pure Growth Diamonds, said that even under the microscope, it is difficult to distinguish, but they are much cheaper, they are not blood diamonds, and they are economically beneficial.

The manufacturing process of synthetic diamonds takes only 6 to 12 weeks, placing carbon seeds in a vacuum chamber and spraying a gas containing hydrogen and methane. After a few weeks, the seeds grow into hard stones and are ready to be polished into diamonds. Synthetic diamonds and natural diamonds can only be distinguished under special microscopes and ultraviolet light.

Due to the depletion of natural resources, diamond prices have increased by 75% since 2009 and will continue to grow by 5% in the next decade.

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