The government consumer protection agency, PROFECO, is warning about the jewelry sold in many stores in Cozumel. the local director ,Ariadne Choral Santín, indicated "that this it is not a problem that can be adjudged to two or three jewelry shops, but that the great majority is committing these illicit sales, which is affecting all Cozumel."
"Many retailers are doing this, since they have realized of which it is a fast form to make business, inducing to the deceit to the tourists, selling to them things that a value very much below the real one , allowing them to sell to more than the thousand percent of his real cost", she states.
This agency , PROFECO, is a highly respected and effective one and it would be wise to heed their advice. Of course, the same advice would apply to Playa del Carmen, Cancun and many other areas, I am certain.