The Diamond and Diamond Grading eLearning course brings to life the skills needed to grade the color, clarity and cut of diamonds through video, graphics, images and text.
But Congolese mining officials say diamonds are a vital source of income—if not the only source—for an estimated 1 million small-scale, or artisanal, miners in Congo who dig by hand for the ...
it's easy to mine diamonds on a large scale, Smith said. "You can kind of dig a big pit and you can blast it, fill up big haul trucks, and then process it in a bulk way," he said. "You can't ...
The man-made diamond boom is over, and prices for ultra-trendy lab-grown diamonds are set to tumble this year, industry veterans say. Paul Zimnisky, a leading diamond analyst, foresees jewelers ...
This course covers how to describe diamond jewelry accurately for effective and ethical sales conversations with customers. Key topics examined include the internationally accepted GIA clarity grading ...