Pryazine:Because the conditions of HPHT are very similar to diamond's original formation, only a well equipped lab will be able to positively identify this type of color enhanced diamond. HPHT was first used to turn yellowish diamonds into more marketable fancy colored enhanced diamonds, but now it is also used to transform some unpopular brownish diamonds into more desirable colorless colored enhanced diamonds. https://goldencondor.org/pryazine-male-enhancement/