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

https://hatton-garden-jewellers.co.uk/7-things-to-check-before-buying-a-diamond-ring

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