I am today 3F008, Tianbei Si Road International Jewelry Trading Center, Luohu District, Shenzhen. I bought a emerald green ravioli A goods. I want to know if it is true,

I didn't see the real thing, it's not easy to judge!
The Tianbei fake goods are small, which can be trusted! Most domestic jewelry trading markets (optimistic, not retail merchants) merchants will tell you true and false when introducing! Most of the similar situations that appear now are caused by the purchase of tourist attractions!
The method to tell you:
It the description of the certificate is consistent with the real thing!
Then see if there is a CMA logo
This to check the certificate number at the end
. If the situation is true, this is generally true!