Description
Overview of use of screening and identification instruments in last 25 years when colorless Laboratory Grown Diamonds (LGD) were rare, up to now, with industry-wide shift towards laboratory-grown diamonds.
While well-equipped labs can identify LGDs and issue a report accordingly, the science of diamond no longer resides in the lab, as diamond dealers, gemmologists, appraisers, and retailers need help to at least screen and identify natural and laboratory-grown diamonds. Recently, a growing number of detection tools have been developed using several different screening or detection methods. There are over 70 instruments on the market, so diamond trade is confused on proper use and interpretation of results.
Branko Deljanin (CGL, Vancouver, Canada) B.Sc., GG, FGA, DUG is a research gemologist and instructor with extensive experience in advanced testing of diamonds and gemstones to determine origin of color.
