There is purchase protection which should cover loss/theft etc up to $10k for 90 days. You might want to call and make sure a ring is not an excluded item.
Supposedly also, if both cards are in your name you can use the SPG and still get platinum card's benefits. I have no experience doing it though.
Originally Posted by
fflier_9999
or determined to be not worth what I actually pay for it?
Having worked in a jewelry store in college, I would recommend only buying a stone that is GIA certified.