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

https://chancevwpt210.wpsuo.com/how-can-i-tell-if-prongs-are-set-properly-on-a-ring

Before buying a diamond ring, it helps to know a few key things. Check the Four Cs to understand the diamond’s quality, and ask for the GIA grading report number to verify its authenticity