Sapphire is now widely used in mature fields such as luxury watches, high-end camera lenses, and 3C digital, such as the dials of Patek Philippe watches, the screen mirrors of luxury mobile phones Vertu, and the sapphire crystal mirrors of Apple Watch. Sapphire has also always been known as the imperial stone, protecting kings and monarchs from harm. As the second-hardest mineral in the world after diamond, it also has excellent properties such as high hardness, good thermal conductivity, and strong scratch resistance, making it very suitable for use as a surface material for non-stick pans. Corning Sapphire Pan creatively applies sapphire material to the surface of the non-stick pan. The non-stick surface made of sapphire crystal is hard, wear-resistant and has good corrosion resistance. It also does not contain the chemical ingredient PFOA. In addition to sapphires, diamonds are also very good coating materials. Swiss Diamond, a subsidiary of Corning Tableware, uses patented technology to mix real diamond crystals and nanomaterials and cast them on the surface of the pot. It has excellent non-stick and super strong adhesive properties. Due to their corrosion resistance and wear resistance, pots made of both materials are worth buying.