What are the 4 grades of diamonds?
Excuse me, could you please elaborate on the four grades of diamonds? I'm curious to know how they are classified and what factors determine each grade. Are the grades based on clarity, color, cut, or a combination of these characteristics? Could you provide a brief explanation of each grade and what sets them apart from one another? I'm eager to learn more about the grading system and how it affects the value and quality of diamonds.