April 2021 | Lab Grown Magazine

April 2021 | The Lab Grown Diamond Resource Book 32 Joseph Kuzi receiving the second JNA Award in Hong Kong in 2019 for the company's Diamond Natural Device. The company won its first JNA Award in 2014 for DiamaTest®. grown stones, which typically luminesce for short periods after being removed from a UV excitation source. What we discovered is that, once irradiated, the HPHT-grown diamonds will no longer display phosphorescence. What sets Diamond Services apart is the line of devices specifically developed for the diamond industry, all of which are working in a liquid nitrogen atmosphere.This gives DS the capabilities to provide accurate and guaranteed results to its customers, regardless of the size, and whether rough, loose, or set diamonds (set diamonds provide higher degrees of difficulties for detection). It has been a fascinating journey, and it continues. It has been our privilege to travel it with you. Images are courtesy of Diamond Services. ■ tems, and to instead concentrate on providing laboratory services that efficiently andcost-effectively meet the growing demands of the industry. Our competitive advantage, we felt, needed to come from our doing the job better. Ultimately, the market would decide whether we were meeting that requirement. Our research and development team has been up to the challenge using a new system called, DND (Diamond Natural Device). Today this system allows us the ability to accurately detect, with close to 100% accuracy, all lab-grown stones in the colorless to near- colorless range of diamonds, and also in the lower yellowish-to-light-brown color ranges. This includes rough and polished loose diamonds, as well as stones set in jewelry, in large quantities, and with no size limitations. For developingDND,Diamond Services was recognized with its second JNA Award in 2019. The decision to focus our efforts on laboratory services has been reinforced by ongoing research. In 2018, we issued a global lab alert that new data indicated that HPHT lab-grown diamonds, which later had been subject to irradiation treatment, may be escaping detection by many of the desktop screening devices available in the market. Such systems,which operate at roomtemperatures, do so by detecting tell-tale phosphorescence in lab-