LITTLE KNOWN FACTS ABOUT COLOR CENTER DIAMOND CRYSTAL.

HPHT procedure of Style Ia diamonds usually leads to a recognizable lower in platelet focus and, In the event the treatment temperature is >2000 °C, the presence of C centers can usually be detected in addition to a and B centers. Baseline offset for clarity.Photoluminescence spectroscopy reveals that unstable defects are taken out by HPHT treatme