[BrentOzar]

> If I buy a good loose lab grown diamond will I be able to find someone who will fit it into a high quality gold ring?

Yes, and even better, don't design the ring by yourself. Get a nice jewelry box for the diamond, use it for the proposal, and when you open the box, say:

"Our relationship is something we're going to build together. I want your opinion on everything for the rest of my life, because you're going to be my partner. I got the diamond, but let's design the ring together, you and I, because this is too important for me to do by myself. I need your help."

They'll melt, and the ring will mean even more.

[cman1444]

Do not do this unless you are extremely confident it will go over well.

Usually people want to be able to put the ring on their finger (for pictures and engagement announcements) as soon as the question is popped.

Also, the "I need your help" line falls a bit flat to me. Reads like the proposer isn't capable of completing a very important task without some handholding from the "proposee".

[brandonmenc]

This is... not good advice.

You're supposed to know what kind of ring your soon-to-be fiancé wants ahead of time.

And they're going to want to be able to put it on their finger right away.