CVD diamonds improve from an HPHT grown diamond seed crystal. Carbon rains down from a plasma cloud and deposits on to the seed crystal, increasing diamond in levels. If there is not any obvious difference between a lab-grown diamond and a pure diamond, which 1 do you have to Choose? https://labgrownddiamondengagment15927.actoblog.com/26800374/5-simple-statements-about-lab-grownd-diamond-engagment-ring-explained