What do I need to know when it comes to buying a loose diamond?
Can I ask the seller to set it in a ring for me?
What questions should I ask him? Are loose diamonds “certified” or does that happen at the retail level? How do I get this diamond insured? What does insurance really do for the diamond?
ANY INFO will be useful!

Read this:
It’s everything you need to know about diamonds - and they have settings too!