The Gemological Institute of America (GIA) will be holding seminars at the Israel Diamond Exchange next week aimed at improving understanding and knowledge about treatments and synthetics. The speakers at the seminars will be Dr. James Shigley and Brenda Harwick.
The first seminar is on "Identifying Diamond Treatments', and presents information on the nature and treatment of diamonds including laser drilled, fracture filled, HPHT, irradiation, and multiple treatment processes. It will take place on November 15 and 16. The other seminar is on the topic of 'Identifying Synthetic Diamonds', and will present information on HPHT and CVD-grown synthetic diamonds and how to separate them from natural diamonds. It will also be held on November 15 and 16.