you’ve probably come across something called moissanite. http://www.starjoygem.com/moissanite/
China Customized Moissanite Manufacturers, Factory - Wholesale Moissanite in Stock - XINGYUE
XINGYUE is one of the most professional moissanite manufacturers in China, specialized in providing high quality customized service. Please feel free to wholesale high-grade moissanite in stock here from our factory. Contact us for quotation.