Before buying a diamond ring, it helps to know a few key things. Check the Four...

https://rapid-wiki.win/index.php/Diamond_Color_Grades:_What_Will_I_Actually_Notice%3F

Before buying a diamond ring, it helps to know a few key things. Check the Four Cs—cut, color, clarity, and carat—for quality and value. Always ask for the GIA grading report number to verify the diamond's authenticity