Diamond anvil cell

A diamond anvil cell is a scientific device used to create extremely high pressures, similar to conditions deep inside planets. It uses two very small, flat diamonds—the hardest known material—that are pressed together to compress a sample placed between them. Even under intense pressure, the diamonds remain transparent, allowing scientists to study materials' properties with tools like microscopes and lasers. This technique helps researchers explore how materials behave under extreme conditions, aiding in the development of new materials and understanding planetary interiors.