About Lab Diamonds:

HPHT & CVD diamonds are atomically identical to mined diamonds and are composed of pure crystalline carbon. Some diamonds come from below ground and some come from above ground HPHT & CVD diamonds are man-made diamonds. Unlike natural diamonds which take billions of years to form deep beneath the Earth's surface surface, HPHT & CVD diamonds are grown in labs. Specifically, HPHT stands for high pressure and high temperature. It is a method of applying HPHT to those diamonds that are not fully crystallizeven thoughpremature diamonds") when released from fiery, erupting volcanoes.