Cushion cut earth mined hthp diamond ring. HPHT diamonds are genuine Colored Diamonds found naturally mines mainly from Brazil. They are more porous than White Diamonds and are found in the upper layers of the ground relative to the White Diamonds that are mined deep. Some scientists are of the opinion that their origin maybe a Meteor that impacted earth Billions of years ago. Colored Diamonds are not found in the state as they are sold. They are made from earth mined rough rock found in mines of Brazil. The Rock color varies from Light Blue, Dark Blue, Champagne, Pink, Green etc. These Diamonds are rare and hence opinion may be varied from person to person. Any opinions of any Jeweler, Gemologist, expert, appraiser etc will not be accepted to judge the authenticity of our Gemstones and Diamonds.