Step 4: Gem Grading
A prerequisite to diamond grading is knowing how to tell diamonds from their lookalikes. It does no good to assign color, clarity, and cut grades to a gem, if you cannot tell if it is a diamond or a GGG.
In theory, you should be able to distinguish a diamond simply by looking at it. No other gem has properties that exactly resemble a diamond. However, this becomes difficult when you …
To read this entire article and hundreds more like it,Become a Member
Already a member? Simply login to your account.