What is the meaning of the acronyms referring to the color of diamonds?
The scale used for diamond color grading goes from the letter D (the most valuable) to the letter Z (the last valuable). D stands for Exceptional White +, E stands for Exceptional White, F stands for Rare White +, G stands for Rare White, H White, I/J Slightly Tinted White, K/L Tinted White, M/Z Tinted.