Some websites offer the chance to win “free” jewelry if you enter a contest. Such contests are supposed to be no-obligation, meaning that you don’t have to purchase anything in order to enter. What you do have to do is provide some information about yourself. How much information you will have to provide varies with each offer, but it will definitely be at least your name and email. Even this little bit of information is enough to flood your email account with spam. If you are asked to provide even more information, like your address, the website offering the free jewelry can then sell this to a direct mail company and then your physical mailbox will be stuffed with junk as well.
Another drawback of free jewelry contest offers is that there is usually an astoundingly small chance of actually winning. Be sure to read the fine print and make sure you understand the odds of winning. Only enter the contest if you really believe the odds of winning merit risking having your personal information collected for marketing purposes or sold to the highest bidder.