https://www.siliconvalley.com/2022/02/03/everything-you-need-to-know-about-moissanite-stones-in-jewellery/

Moissanite stones are becoming very popular in jewelry due to their unique properties. These Moissanite properties are critical in defining their quality and usefulness. These gems are extremely durable and resistant to scratches and other damage. This makes them ideal for everyday wear.

Moissanite is a naturally occurring gemstone that has been around since Henri Moissan found it in 1879. The stone was named after him. After some lab studies, researchers found moissanite to mainly comprise Silicon Carbide (SiC).  As a result, they started manufacturing it in the laboratory.