Since there are almost no incontestable example of top quality emerald - here. May this example lead you to make educated choices.

I rarely see good top shelf emeralds make it to the public eye from in store browsing, even in marketing. A large window of what majority of the vast public to believe is “good emerald” is the mossy heavily included and often treated we see constantly (understandably it’s more common but my gripe is sellers claiming it’s “investment grade”).