An Interview at the Hong Kong Jewellery & gem Fair by Nick Hodgson of Astrogems.com regarding the controversy over lab grown diamonds. 96% of all natural diamonds show evidence of nitrogen clusters with the use of a spectrometer. Even though these diamonds can be a perfect colorless gem with no inclusions, at the atomic level they are not the pure carbon geometrical atomic matrix one would want in a perfect crystal structure. With certain lab grown crystals the difference is that they are just pure carbon which technically creates the perfect crystal. It is for this reason that i am not against the use of certain lab grown diamond crystals for astrological purposes.