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.
I was in Vegas about to go on stage to talk about the redesign of Clarity and I saw this tweet and it gave me a little pep to my step. We put in a lot of effort to make sure we are customer focused.
A dead spot is an area of the gem in which no play-of-color appears and only background color is visible. Dead spots detract from opal value, especially if there are several of them. With an opal, ...
An economy of scale is a microeconomic term that refers to factors driving production costs down while increasing the volume of output. There are two types of economies of scale: internal and ...