Diamond Services is the market leader in spectroscopic identification of lab-grown diamonds.
Gem laboratories, certification and assurance firms use a laser to excite some impurity lines within the diamond band-gap.
Diamond Services is the only laboratory to spectroscopically identify a lab-grown diamond unambiguously, by cooling the diamond down to low temperatures (<100K).
Based on extensive research, we believe that without cooling to lower than liquid nitrogen temperatures it is impossible to resolve the difference between a natural diamond and lab grown diamond.