Description

High Pressure High Temperature (HPHT) is a way in which synthetic diamonds are manufactured.It uses what are called "presses" in order to recreate the environment inside of the Earth. Cubic presses use cube-shaped volume. It is made up of multiple anvils to put pressure on the volume. Originally only four anvils were used, however, cubic oresses now are made up of six anvils because they maximize the pressure available. Cubic presses are smaller than belt presses, HPHT is the most commonly used system for producing synthetic diamond, mainly because of itslow cost.