A penny saved is a penny earned. So just think of all the money you'll be rolling in when you bypass costly gems in favor of more affordable baubles. Most people aren't jewelry experts. Chances are you'll be the only one who knows the difference. If diamonds are a girl's best friend, than cubic zirconias are definitely a not-so-distant second. It's important to keep in mind that even real jewelry can look tacky when it's overdone. No matter how hard you try, there are some looks that scream "cheap." These include bulky metal earrings, plastic jewelry and huge stones that you obviously would have to rob a bank to afford. The most important rule of thumb when getting decked out is "less is more." Experts recommend that if you're going to buy a large piece of costume jewelry, make it the centerpiece of your look. For example, if it's a big necklace, complement it with small stud or hoop earrings or some basic bangle bracelets.