The best way to tell if your pearl jewelry is real is to take the pearls to a jewelry appraiser. The appraiser will look for qualities such as luster and shine.
To tell if the jewelry is real.
Yes..
You can tell by looking at the claps . It should have it engraved.
It will have the mark "P" imprinted
yes
Bring it to a jewelry store or bite it see if it bends.
Yes they actually have the eye scopes too to tell if its real or fake
It should have a hallmark somewhere on the jewellery.
test it on the lab. if the price is low, that means its fake.
It may be very difficult to tell the difference between a counterfeit Baume and Mercier watch and a real one. With jewelry, it is always best to have the piece appraised by a professional. They will be able to tell if the watch is real or not.
There is Assay offices who can check gold or silver purity and give report.