Of course. If however, it is valued above certain price - such as $10,000 - you must declare it to pay the appropriate taxes.
No, as long as the jewelry you bring back from Mexico is not worth more than USD 10,000. Otherwise, import duties are expected.
Only illegally.
you can eather get them in a Mexican shoping store or the flee market and no you can not bring them from Mexico to the u.s
What did Mexico bring.
well they certainly do not wanna bring you
Bring your jewelry to a jeweler or a store that sells jewelry and ask.
bring a beer
No, chickens can carry a number of diseases that could devastate chicken flocks elsewhere so may not be brought into the United States from Mexico - dead or alive.
After Spain claimed Mexico they believed the following states (Texas, New Mexico, California, & Las Angelas) were there's. But the United States government fought for those states and won the war and the battle at The Alamo. Those 5 states were claimed by America even though they a part of Mexico True Land
Bring it to a jewelry store or bite it see if it bends.
No, unless you want to sell it to someone in the United States as an original; that is known as piracy.
Zimmerman note: said that Germany would promise a few states to Mexico if they join the war on there side