I’m planning to buy an original emerald stone (Panna) for astrology purposes, but I’m confused about how to know if it’s real. I’ve seen so many synthetic or low-quality ones online.

I found a site called Gemsmantra that claims to provide certified and natural emeralds. Here’s the link:

Has anyone purchased from them before? Also, what should I look for in a genuine emerald—color, transparency, origin?

Would really appreciate your insights before I invest.