Diamond anvils produced by New Diamond Technology are cut and polished from laboratory-grown (synthetic) HPHT single-crystal diamonds of IIa type. Due to their exceptional properties diamond anvils are used in research centers to study various materials behavior under high pressure over 100 GPa.

There are no inclusions, cracks and defects. Perfect diamond structure and low level of dislocations and impurities guarantees low birefringence of anvils.