‘The Natural Color Diamond Association will present a study at the Hong Kong Jewellery & Gem Fair on how coloring in diamonds develops.
Since 2009, GGTL Laboratories in Liechtenstein has been analyzing both natural and lab-grown diamonds. The results will be given by laboratory director Thomas Hainschwang (pictured), in a seminar moderated by Rapaport senior news reporter Joshua Freedman.
The presentation will take place at the Asia Word Expo in Hong Kong on September 17.’
Source – www.diamonds.net Rapaport