As a consultant to the diamond industry, I offer my expertise and share my knowledge with diamond collectors and private investors who are eager to learn more about this subject.  I also advise industry professionals who are interested to advance their knowledge and improve their business.  Based on my years of experience in the diamond industry, and my unique ability to measure diamond colours with an objective instrument, I can offer a wealth of practical experience and provide valuable insight concerning the purchase or sale of a natural coloured diamond.